As a Dying Moment of Awesome, Lt. Marito exhausts his ammo while fighting a Martian. Since he's covering his subordinate's escape, he pulls a knife and charges. When his mech's arm is annihilated by the Martian's defenses, he, without missing a beat, pulls his pistol and empties its mag right into the Martian's cockpit at point blank range. It doesn't work, but damn if the man didn't have guts to at least try. Then the end of the episode reveals he survived.
Slaine's escape from Cruhteo's castle in Episode 6 is actually pretty understated awesome. For him to make his escape, he would have to have realised after informing the Emperor that his position was compromised. He then manages to Solid Snake his way out of the castle, stealing the sky carrier in the process. The icing on the cake was his beautiful shot that destroyed the last Rocket Punch going for the Wadatsumi.
Slaine being able to withstand the massive Cold-Blooded Torture session he was put through. Even still being able to laugh at Cruhteo. Though it ended with a Heel Face Door Slam moment, Slaine being able to cause Cruhteo to realize that Asseylum is still alive and that Saazbaum was responsible for trying to kill her manages to get him to say that Slaine "proved his loyalty to Vers a thousand times over."
And then When Saazbaum prevents the Princess from making her drop, Magbaredge has the Deucalion itself crash land into the Landing Castle.
On the initial assault on Saazbaum's Landing Castle, Inaho basically clears out all of the anti-air defenses singlehandedly.
Inaho using his collected knowledge and experience to completely demolish Saazbaum in a straight up fight. He would have ended Saazbaum's life right then and there if it weren't for Slaine's interference.
Combines with Tear Jerker, but when Slaine threatens Inaho not to get closer to Seylum, he turns around and smirks at his enemy before pulling his own gun, knowing he was going to die anyway.
Inaho in Episode 13. When he confronts Frozen Elysium, which freezes everything around it in a one kilometer radius, Inaho methodically fires various rounds of ammunition at it to see what works, and discovers that extreme freezing temperatures will actually deflect bullets fired from long range. He then comes up with a plan to fire a chain of airburst grenades and fly through the explosions so that the heat from the blasts keeps his Kataphrakt from freezing. He then closes to point blank range on Frozen Elysium and destroys it.
Episode 14: Inaho decimates Stygis platoon, landing shots on them with pinpoint accuracy despite the Asteroid Thicket's gravitational distortions (and the solar wind) throwing off everyone's aim. And then he duels Slaine, in a battle of pinpoint accuracyversusprecognitive evasion. The icing on the cake is the use of "No Differences", a song that really highlights how Slaine and Inaho - and by extension, Vers and Earth - aren't really as different as they think.
Episode 15: During the battle between UFE and Vers forces, Inaho once again engages Slaine and actually manages to land a hit on the Tharsis. When Saazbaum enters the battle Slaine leads him into a trap, by luring him into the path of a volley of bullets he had fired into Earth's orbit 6 hours ahead of time. Then, right before Saazbaum is destroyed, Slaine gives an epic The Reason You Suck speech to him, telling him how he had never intended to follow him anyways. Afterwards, Slaine takes advantage of Saazbaum's death to take his position as a Count. It's also hinted that Slaine deliberately let Inaho land the hit on him, as evidenced by Inaho's surprised reaction, to manipulate Saazbaum into protecting his newly adopted son. It looks like Slaine has finally taken a level in magnificent bastardy.