Both factions now have level meters, which slowly fills up by itself for soldiers, while mutants infect/attack soldiers and/or taking damage or collect crates. Unlike previous modes, mutants get to keep half of their bar upon infected, and they don't lose progress when respawning, but they can't adsorb EXP from dead mutants to evolve. For each completed levels, both will receive many perks; last one being transformation into Knights and Armored Mutants respectively. |-| Maps= |-| Trivia=