In Red Faction: Guerrilla, the protagonist, Alec Mason, will be able to run, jump, hijack vehicles, and use weapons to traverse across the open world of Mars and fight the EDF (Earth Defense Force). Weapons in the game will include: machine gun turrets, rocket turrets, remote charges, a sledgehammer, machine guns, and many others.
A special weapon, the “Grinder”, is a homemade, improvised weapon made by miners that launches charged blades at enemies and objects. There is also a unique weapon called the "reconstructor". It is a multiplayer-only weapon that can be used to rebuild destroyed structures. Originally an april fools day joke, there is a weapon in the game called the "Ostrich Hammer". This is simply an Ostrich being used as a sledgehammer, and is an unlockable reskin of the default Sledgehammer. It was added as an official weapon following considerable fan feedback after the april fools video release.
Vehicles will be making a return in the latest iteration of Red Faction. The game includes over 30 vehicles such as: APCs, a 6 wheeler cargo truck, a walking construction mech, a tank, and many others.
In the E3 2008 demo, it was shown that the player may use guns, melee weapons, vehicles, and explosives to destroy nearly every part of the environment, and allows the player to “tear the EDF presence down brick by brick”.
The game will have a radio function, which allows various characters to give Alec information. A two part HUD and a GPS which displays the in-game objectives and orders has been included. There is also an all new, integrated cover system in the game. The game will feature equipable "Backpack" items for the multiplayer mode; ten backpacks have been revealed at the official website under the Multiplayer section, each with differing functions such as healing nearby allies, turning the wearer invisible, or allowing them to see through walls. However, only the Jetpack is available in single player mode.
[edit]Multiplayer
The final version of the game will also have a multiplayer mode, allowing for up to 16 players on a server at once. The player will not use Alec in the online version, and instead will use separate characters unique to multiplayer. It has been announced that the game will feature several multiplayer modes.
In the Beta (see below) there is an equivalent to Team Deathmatch called Team Anarchy and a Capture The Flag Style game which forces the player to use Geo-Mod's Destructible Environment feature in order to capture different objectives. Multiplayer mode will feature many of the games single-player levels, with locations including the capital city Eos, and Parkers mining outpost.
Along with online Multiplayer, there is an offline only multiplayer game mode known as Wrecking Crew. Wrecking Crew features several different modes, all of which are based around causing as much damage with a set amount of resources (such as ammo, time, or both). At the beginning of the game the players individually pick their own weapon and backpack to start out with, and after each match the person who causes the most destruction chooses the weapon and backpack loadout for the next round.