Fall of Liberty provides examples of the following tropes:
Absurdly Ineffective Barricade: The original LCPD checkpoints made up of police cruisers and NOOSE vans are shown to be almost useless in stopping the zombies. Nothing short of a twenty meter high concrete and steel wall can stop the undead hordes for long.
A Million is a Statistic: By chapter six, Bohan has been declared an acceptable loss, leaving the inhabitants on their own.
All Your Base Are Belong to Us: Broker and Bohan are completely overrun, while sections of Algonquin are eventually taken as well, and with Alderney barely holding out.
America Saves the Day: In chapter six, CIA director Paul Ross tells Francis McReary that the Marines are going to be sent in to save Liberty City. Since Paul has gone through a Face-Heel Turn, this remains to be seen as either the truth or complete bullshit.
Ancestral Weapon: Paul Ross carries a Browning Hi-Power as his main weapon, a family heirloom that has been passed down from great grandpa Edgar.
Apathetic Citizens: Most likely the reason why Broker and most of Liberty City were overrun so quickly and later Algonquin is the fact that most citizens seem blissfully unaware of what is really going on.
Armor Is Useless: Averted. LCPD riot armor and Kevlar vest help a lot against the undead menace.
Artifact of Death: The only ones to touch the mask and live to tell about it so far is Niko Bellic and Paul Ross.
Artifact of Doom: Our old friend, the Aztec Mask brings the undead to the 21st century.
Authority Equals Asskicking: Francis McReary, Agent Hill, the head of the Liberty City branch of the FIB, and CIA Director Paul Ross are not afraid to fight the zombies alongside their guys in the field.
Francis considered his options. Either he sat behind those strong walls back there and waited for the Marines to come rolling through in five days' time, or he went out and actually tried to save the remaining people of Algonquin from the nightmarish fate that awaited them at the hands of the zombie hordes.
In chapter 18, Armando was revealed to have been fed to the zombies after he was captured by the Triads and Huang is killed by Paul Ross.
CIA Evil, FBI Good: The FIB are briefly mentioned to be fighting alongside the LCPD against the zombies. The CIA on the other hand are partaking in clandestine operations, which include killing LCPD officers, civilians, causing tons of collateral damage. All in the name of national security.
Citadel City: Algonquin quickly becomes this as the plague spreads, with twenty meter high concrete walls being erected on the bridges and around the edges of the island, whilst LCPD and NOOSE units protect all of the bridges and the city interior from undead attack. It doesn't work.
Broker, being ground zero of the zombie plague, was effortlessly overrun by the zombies and is now a warzone with looters scavenging what they can, LCPD surviving by any means necessary, and innocent civilians getting caught in the crossfire.
Bohan was lost just hours after the zombies appear, now militias and heavily armed gangs rule the district, and it has been declared a lost cause.
Alderney has become a war torn shithole, with police and armed gangs fighting for control of the streets.
After the undead breach Algonquin, the city quickly goes to complete shit.
Daylight Horror: Most of the story takes place during the morning and midday hours.
Death from Above: Played horrifyingly straight where NOOSE Annihilator gunships mow down innocent civilians running from a horde and also when CIA helicopters use their miniguns against the Triad stronghold.
For a few agonizing seconds Niko felt the bullets fly past, the harsh thud of the helicopter blades mixed with the high pitched clatter of the heavy machine guns and dull cracks of the NOOSE trooper's weaponry. He saw a man, clutching a small child to his chest, disappear in a blast of crimson and a howl of pain as he attempted to take cover behind a blood stained taxi...
Driven to Suicide: Chapter seventeen reveals that Gay Tony purposely OD'ed on pills sometime before the outbreak.
Dying Like Animals : Very true for a world as cynical as that of GTA. Specific examples include:
Lambs - The citizens of Algonquin island. While the rest of the city descends into anarchy they do very little to help,prepared to sit behind the walls and LCPD barricades around them.
Boars - The LCPD at first. This is shown especially by one of the officers in chapter four who needlessly sacrifices himself as his comrades are being torn apart by the undead.
Wolves - The looters and the Chinatown Triads. Both groups are well armed and manage to survive, but are more than willing to kill other survivors to do so.
Weasels - Ironically enough,the reporters of Weazel News fit this trope. As Broker burns around them,they use their helicopter to get exclusive images of survivors running from the undead while making no attempt to help them.
Eaten Alive: With zombies taking over the city, this is a common occurrence for many.
Emergency Broadcast: Heard by Niko and the gang in Chapter Seven. Made worse by the fact that by then Broker had already been almost fully overrun.
"This is an emergency broadcast on behalf of the Liberty City Police Department. Until the current crisis is over Liberty City remains in a state of martial law. Due to the spread of the infection Algonquin Island is currently under a state of lockdown and any attempts to cross the bridges or use of other ways to reach the island shall be met with lethal force. All citizens are advised to barricade themselves in their homes and stockpile a weeks' worth of supplies. LCPD patrols will monitor the streets and any looting or crime will be dealt with swiftly."
Enemy Mine: Chapter six reveals that guards at the Alderney State Correctional facility has released some prisoners and convinced them to help them guard the gates.
Karen, Francis' assistant, is reveled to have been a CIA mole in chapter 20.
Friendly Local Chinatown: While on their way to Alderney, Niko and the crew cut through Chinatown to reach a marina. This Chinatown is not so friendly anymore and is under watch by Triads who will kill any and all trespassers.
Fighting for Survival: As the plague spreads, the survivors become much more battle hardened and able to help out Niko and his crew. These include:
The Pack - The LCPD after they become more competent at fighting the zombies.
Soldier Ants - The civilians who manage to survive the initial outbreak, especially Luis Lopez's small army of former club bouncers and DJs who are more than able to survive on their own.
Lions - Commissioner McReary, who quickly turns the LCPD into an effective fighting force against the undead.
Gas Mask Mooks: LCPD, NOOSE officers, and CIA agents wear these due to thinking the zombie virus is airborne.
Hellish Copter: Subverted to an extent. The only time helicopters are vulnerable to the undead is when they fly too close to the ground or when a RPG is fired at it.
Heroic BSOD: Niko and his entire crew goes through this after Mallorie is killed by the Triads.
Hero Killer: Paul Ross has already killed Luis Lopez and Francis McReary.
Hold the Line: This seems to be the logic behind the LCPD sealing off Algonquin behind steel gates and high concrete walls and is also seen when riot police armed with nothing more than steel shields and batons fight against the undead as they pour through the breached Algonquin Bridge gates.
Hollywood Tactics: Subverted. The LCPD, CIA death squads, and civilian survivors are competent when fighting the undead.
Hope Spot: The CIA attack on the Triad stronghold, with Kate thinking it was the LCPD attacking.
Horseback Heroism: Some LCPD officers on horseback save Francis from a horde and a column of police cavalry are seen by Niko in chapter fourteen.
Immune to Bullets: Unless you land a head shot, the zombies will keep on coming no matter how many times they are shot anywhere else. This is especially true of the undead NOOSE officers first seen in Chapter Eleven
Incongruously Dressed Zombie: To show the true extent of the infection,the outfits of the zombies vary wildly, from news reporters and women in cocktail dresses and party outfits to paramedics, police officers and armored NOOSE personnel.
The Mafia: Mentioned in chapter seventeen, where they are fighting against the Triads for turf in Alderney.
Meaningful Name: Ojo del Diablo, the name of the cargo ship that brings the mask to Liberty City means "Eye of the Devil" in Spanish. It is also a location in Red Dead Redemption.
Militaries Are Useless: Subverted. Actual ground forces have yet to make an appearance, so only the LCPD remains to fight the zombies. When well trained CIA operatives go up against the undead and the USAF are called in to help try keep the virus contained, they prove themselves very competent
Mob War: One is still being fought between the Alderney Mafia and the Triads.
No FEMA Response: Subverted. The US government have placed a seven day quarantine on the city until the infection is deemed to have burned itself out or until everyone is dead.. At the end of this period they plan to send in the Marines and clear up the city.
Niko again in chapter three when he sees a rioter at an LCPD roadblock pull out a gun and kill an officer which leads to the other police at the to roadblock to gun down unarmed civilians.
Offpage Moment Of Awesome: In chapter six, it is briefly mentioned that The Lost MC were filmed charging at zombies hordes on their motorbikes only armed with baseball bats and sawed off shotguns.
Police Are Useless: The LCPD are overrun by the Zombies in Broker, Bohan, and eventually parts of Algonquin while the Alderney PD is fighting both the zombies and armed gangs who want to make their own kingdoms. However, the NOOSE seem to doing better but are still getting torn up out there. This is later averted as the LCPD become more battle hardened and experienced in zombie warfare.
Police Brutality: As the situation goes more and more down the shitter, in Broker, the LCPD start firing on unarmed civilians, which even horrifies Niko and for good reason.
Put on a Bus: Little Jacob decides to stay with what remains of Hillside Posse in Broker.
The Quisling: A recently infected man shows an attacking Bolter his bite wound in a desperate attempt to be spared. It doesn't work.
Raising the Steaks: As the infection spreads zombie dogs, horses, and other animals become a threat.
The Remnant: Units of the LCPD in Broker become this as more stations get overrun.
Run or Die: The undead hordes are so large that anyone who attempts to fight them head on is quickly overrun or infected themselves. The main reason Niko and the gang manage to survive is because,when they face the undead, they are prepared to run than fight pointlessly.
Semper Fi: In chapter six, Paul Ross states that the Marines are going to be sent in to save Liberty City... in seven days. So until then, the LCPD and the entire city are on their own.
Senseless Sacrifice: In chapter four, one of the LCPD officers that arrested Niko, Roman, and Jacob chooses to help his fellow officers rather than getting the hell out of there. He along with his comrades end up a zombie chow but it gives the crew a chance to escape.
Took a Level in Badass: The LCPD, who are usually depicted as complete dumbasses, are shown fighting bravely against the zombies. By chapter fourteen, they have completely adapted to the hellhole that the city has become and are way more battle hardened than ever before.
The Great Wall: The wall built around Algonquin in the early stages of the outbreak, including twenty meter high steel gates on the bridges, watchtowers and barbed wire at the top, backed up by snipers in helicopters patrolling the skies above, all to keep the zombies and other survivors out of Algonquin.
The Triads and the Tongs: After Algonquin is overrun, the Triads fiercely protect Chinatown and will kill any trespassers, whether human or zombie. With Huang Lee leading them. Meanwhile in Alderney, the Mafia and the Triads are still fighting turf wars.
Title In: Every chapter begins with the location it starts in.
Undead Child: Subverted in the case that they do appear, but Niko has not killed one yet.
Watching Troy Burn: Francis McReary is forced to watch the rest of Liberty City descending into anarchy from the safety of Algonquin and then has to see Algonquin itself fall to the undead when the bridges are overrun.
We Are Struggling Together: Some survivors are not afraid to attack other humans or the LCPD, the Alderney PD are fighting against both the zombies and heavily armed gangs, and the Mafia and The Triads are still fighting turf wars.
X Meets Y: Niko Bellic killing zombies in Liberty City? Yes, please!
Yanks with Tanks: The situation degrades to the point where the USAF are called in and the Marines are on standby.
You Are in Command Now: With the mayor on a "comfort trip" to Las Venturas and with deputy mayor Bryce Dawkins in rehab, Francis is left as the highest authority in Liberty City .
You Have Outlived Your Usefulness: Director Ross orders the NOOSE officers who aided him in securing the mask to be executed by his CIA troops when the mask is in his possession.