- The entirety of Surface Tension. Gordon Freeman finally makes it out of Black Mesa... only to discover that the marines and aliens are still fighting, and the marines are constantly bombing the area. So he goes through, fighting marines, aliens, helicopters, turret placements, and main battle tanks, all while the aliens and soldiers fight one another (and in a small CMOA for the Marines, they usually win). Particular highlights include the battle against the squad of soldiers, turret placements, and helicopter at the Dam, Freeman crossing a sheer cliff face crawling with Marines before fighting up and out of a large storm drain covered by an entrenched squad and two tanks, the area where the marines' Osprey continually drops soldiers to kill a group of alien grunts, and Freeman calling in an airstrike on a Gargantua. It's also worth noting that the HECU is monitoring Freeman's every move via the tracking devices in his suit, and set up ambushes for him literally every 10 or 20 square feet; he kills all of them anyway.
- Even the unnamed mooks get awesome moments:
- The very first Vortigaunt you encounter introduces himself by banging on a heavy steel door, making a huge bulge in it, and then hitting it again full force, shattering the door to pieces, before throwing lightning at you.
- An Alien Grunt in Surface Tension punches a human soldier so hard that he launches him and breaks a concrete wall.
- The subversion of Air Vent Escape. In Surface Tension, you're crawling through an air vent, like you've done so many times before, with the soldiers below chattering on their radios none the wiser. Then suddenly one of them says "I hear something". Cue the soldier and his buddy shooting the crap out of the vent, causing you to drop right out.
- Another subversion occurs when you're crawling through a pipe (well, close enough to an air vent). Just when you think you're in the clear, a soldier opens the other hatch and drops a satchel in it. Better run like hell!
- In the chapter Surface Tension, you can find a tank shooting at you. If you're in the right angle where it can't shoot you, you can wail on it with a crowbar until it explodes. The funny part is that it doesn't take much hits which means Gordon swings that crowbar hard. The awesome part is that HE CAN DESTROY A TANK WITH A SIMPLE TOOL AND HIS OWN BRUTE STRENGTH!
- Pick any given moment from the original game out of a hat. Taking out the tentacles with a rocket, killing the Gargantua, destroying helicopters, getting past the trip mines, hell the entire Surface Tension chapter is one big ass CMOA!
Half-Life: Opposing Force
- The Race X is never mentioned at all during Half Life 2. Two possibles explanations:1) They were no match for the Combine. 2) Adrian Shephard stopped them from invading Earth singlehandedly.
Half-Life: Blue Shift
- Barney gets a big one in Blue Shift: He actually gets out of the Black Mesa facility alive without the interference of the G-Man. That's something that Gordon and Adrian DIDN'T do. Not to mention that he does it without an HEV suit or any experimental weaponry, but with just a helmet and a Kevlar vest.
- Add to it the G-Man's Let Us Never Speak of This Again summary. He had plans for Gordon and Adrian, but Barney? He's embarrassed.
- Okay, so, top of the frelling list here, folks: Father Grigori. Nothing you say can stand up to the fact that he's an Orthodox priest with a rifle and has a problem with his flock. Even better, at the very end of the Ravenholm Mines, there is a minecart trap that includes a spinning blade, which you use to kill the remaining zombies before escape. If we think about this, Father Grigori managed to swim through the Ravenholm mines, climb over fences that Gordon can't climb over, and fight the infinite horde of headcrabs, all twice just to help any rebels that come by and to tend to his flock. He could have left, seeing how close he was, but he didn't. Also counts as Heartwarming.
- The entirety of both "Our Benefactors" and "Dark Energy." Combined with the absolutely fucking AWESOME gravity gun as well as the story reaching it's climax. It really is just completely badass.
- Any time Dog gets into a fight, an event which will probably involve much car-flinging, flailing of trashcan-sized metal fists, and excessive application of ragdoll physics.
- Alyx Vance: the scene in Breen's office. Alyx is currently held captive and immobile. She spits in Breen's face when he mentions her mother. Breen comments on Alyx's stubborn nature. Alyx: "You haven't seen a bit of it yet."
- For further illustration of Gordon's awesomeness, the first definite objective Gordon is given aside from "escape" is to infiltrate a Combine prison and rescue a high priority prisoner, and no-one considers one man doing this to be unusual (granted he later receives a Red Shirt Army of Antlions, but they don't know that). After he succeeds, the resistance takes this as their cue to begin a worldwide revolution and as soon as Gordon appears they follow behind him unquestionably, because things in front of him have a tendency to die.
- Storming Nova Prospekt. You are entering an enemy base, while having an army of antlions at your hands. Plus, Apprehension and Evasion plays at the right time.
- The very existence of Gravity Gun.
- If you want to give yourself a CMOA, it is entirely possible (through a combination of agility and persistence) to kill an Ant-Lion Guard with a crowbar.
- It is possible, albeit extremely difficult and tedious, to keep a Resistance fighter alive following you through almost the entirety of the "Follow Freeman!" chapter. Also a Heartwarming Moment and example of Videogame Caring Potential.
- The HEV Suit itself. endurance measured in days (the Reactive armor system seems to run off a separate powersource in-universe) and providing (probably) enhanced physical strength, at the least, greatly boosted Stamina and speed, and ability to function in the face of severe injuries due to built in medical system capable of diagnosis AND treatment, capable of easily going Toe-to-Toe in a combat environment with Milspec Equipment using the Same armor technology, as Powered Armor goes is almost form-fitting given how sleek and compact it is and it is STILL Just as Effective as it was During the initial Cascade 20 years later, against an opponent with far more advanced Technology in general then its creators.
- Given, the "diagnosis and treatment" is massive doses of painkillers and the structure of the suit taking pressure off of broken bones, but...
- After spending a large portion of Route Kanal and Water Hazard in an unarmed airboat and being pursued by a Combine chopper, Gordon finally gets a repurposed chopper pulse gun mounted on his boat. When you come tearing out of the tunnel and the chopper positions itself to ambush you, it reacts to the sudden hail of energy bolts by panicking and flying away for several minutes. It's an amazing way to make the player feel the power they've gained and how much the odds have been evened.
- A more subtle one that's also worthy of note is how Gordon starts his crusade proper: he comes across a typical scene of Police Brutality, and one of the Civil Protection units comes up to him with the stun baton they oh so love. It does fuck all to Gordon, and the bastard is quickly bludgeoned to a flatline. His pal follows soon after. After this, the stun baton, practically a symbol of the CP oppression, is never seen again.
Half-Life 2: Episode 1
- Gordon and Alyx cross a definitely strange hospital to reach City 17's train station, the resistance's exfil point. A gunship follows you from outside until halfway, where, in an abandoned wood barn, you can rocket it out of the sky for good. You have to take the gunship out while the gunship fires at you and blows entire portions of the ceiling, slowly revealing itself while you try to find a good spot to fire; it's a hard and amazing battle. Alyx seems very impressed with the feat Gordon pulls at the end.Alyx: Jesus, Gordon... you're a real terror!
- Then you're rewarded with a special gift: shotguns for you and Alyx, and a sweet walk through the hospital while blasting Combine soldiers and zombies. All accompanied with a badass track. Happy fighting!
- The Vortigaunts temporarily free Freeman from the G-Man: Up until that moment, the G-Man was a Magnificent Bastard with no apparent weaknesses, in constant control of the situation, and most of the cast didn't even know he existed. The expression on his face when he realizes he's lost control: priceless. "We'll see... about that."
- From the perspective of the other characters, Gordon is a walking CMOA. Alyx would name the defeat of the gunship and then later the Strider as Gordon's CMOA.
- At one point, you can hear total chaos erupting in a nearby room including the sound of Alyx's new shotgun. When you meet up with her again, she says "Sorry I'm late, Gordon. I got a bit swamped." When you enter the room she just came from, you find a bunch of dead combine soldiers & zombies in a hall with no nearby objects to use for cover. One of the zombies was cut in half, one of the combine soldiers was crushed by a vending machine, & everyone somehow died in the same tiny spot. She apparently did all of that with a shotgun.
Half-Life 2: Episode 2
- While it's unfortunately never heard in the game, Eli has an epic line in the first teaser trailer (the one that originally played at the end of Episode One):Eli: We're done running. This is our chance to take back our world. We're not going to lose it a second time.
- The first Hunter battle. Alyx hears the Hunters outside and gets all scared, having almost died from her last encounter with them, only to turn around and take a badass pill before commencing to slaughter them all.
- Dog fights a Strider. He not only wins, but tears that building-sized heavily-armed monstrosity into pieces. By which we mean DOG tears the Strider's BRAIN out.
- When about sixteen million Antlions come pouring into the chamber where Alyx is being healed. Just when you're running low on ammo, the turrets are frazzled and the mines have run out, three Vortigaunts bust through the ceiling. One of them murmurs, "We will quiet them," and they turn to face the Antlions, revealing that for all their enigmatic proverbs and general butt-ugliness, Vortigaunts are fucking badasses. They proceed to unleash all manner of green-lightning-fueled fury on the Antlions, stunning them with bolts of electricity, frying them with concentrated beams, even judo-throwing them to the ground and exploding them with balls of energy.
- The G-man gets back at Freeman with his own CMOA. ("Doctor Freeemaaan. I realize this moment may not be the most convenient for a 'heart-to-heart', but I had to wait until your... 'friends' were otherwise occupied."), topped only by his Take That! to Gordon regarding his actions in Half-Life ("There was a time they cared nothing for Ms... Vance; when their only experience of... 'humanity' was a crowbar coming at them down a steel corridor".)
- Not only was of Freeman but of the Vortigaunts as well. G-Man's Episode Two speech is whole cutscene of awesome. The Vorts knocked the Smug Snake down a peg at the end of Episode One. What does G-Man do? The second he is able to pass the Vorts unnoticed, he gives his badass speech, reveals how he was the one to save Alyx from Black Mesa, and wants Freeman to pay up for his survival by bringing Alyx to White Forest, and gets her to relay a message of doom to Eli as a form of Take That! from the man's own daughter. The closest G-Man comes to losing his cool is the occasional tone of anger expressed when enunciating.
- Mowing down hunters while killing Striders WITH A PISTOL.
- Gordon and a vortiguant are infiltrating an Antlion hive. The vortiguant feels the need to specifically tell Gordon not to kill the Antlion Guard, an insect monster the size of a truck that can throw cars around, laugh off grenades, and the glowing green stuff on it? That's a neurotoxin. About ten minutes after they get what they need from the hive, Gordon gets the go ahead and kills two of them, with little more than a shotgun and the trash that was laying around the valley.
- It is perfectly possible to kill a hunter with a crowbar and not take damage.
- The Battle of White Forest. Accompanied by some of the most Badass music of the entire franchise, Gordon Freeman nigh-single-handedly goes against an army of Combine, including several Striders and Hunters, in a last-ditch effort to defend the Rebel headquarters. He kills them all and wins... until a pissed off Advisor arrives.
- When Gordon and Alyx are completely immobilized by the Advisor ambush at the end of the game, Eli is the one to rush in and promptly begin attacking the creatures personally, knowing damn well it was pointless to try but not letting that stop him. Although they're too late to prevent his death, D0G keeps things from getting worse and even sends an Advisor fleeing in pain and terror.
- For an average player, the game can last in the area of 6 to 10 hours. This speed run completes the game in less than half an hour.
- Half Life 2 speed run. The shortcuts taken and techniques used are mindblowing.
- The fan remake Black Mesa. Not only was it Saved from Development Hell, Valve themselves and the community greenlit it.
- This video is a timeline of the events of the original game and its expansions.
- A redditor made her own HEV suit and it even comes with a soundboard!