2.1.1 Weapon specializations 2.1.2 Armor specialization 2.1.3 Character upgrades 2.2 Cosmetics 2.3 Level progression 3 Maps 4 Quests and challenges 4.1 Quests 4.2 Challenges 5 Achievements 5.1 Challenge achievements 5.2 Legacy challenge achievements 5.3 Tiered achievements 6 Sources Modes[] Defusal[]...