

Players also progress through military ranks, starting out as trainees advancing until they become Marshalls.

The Mutant mode also makes the last three surviving uninfected "Commandos" immune to disease, giving them a boost in melee damage.

The upgrade version makes a random infected dubbed "Terminator" with a ton of HP, who's vulnerable to melee attacks. One interesting style is the Mutant mode, where twenty seconds into the round random players are infected, and they have to affect the rest of the players with contamination. There are the usual Deathmatches and Search and Destroy (plant or defuse the bomb, depending on which side you’re on) methods, and others are new or upgraded versions of the two. Crossfire is a first-person shooter MMO, like Counter Strike, but with more game modes.
