Defcon

Defcon is a cut gamemode for Call of Duty: Modern Warfare 2. It is a variant of almost every other gamemode (Defcon Team Deathmatch, Defcon Domination, etc.). There are unused files in the game called "[fraction]_1mc_defcon_[# 1-5]_01.wav" the announcer is heard saying Defcon 1 all the way to Defcon 5.