4 Deaths - Juiced - Faster sprinting for a short period when respawned
5 Deaths - Revenge - Reveals the position of the enemy who killed you at all times
4 Deaths - Final Stand (Lv. 32) Allows the player to crawl around and use their primary weapon when downed.
4 Deaths - Martyrdom (Lv. 51) Gives the player the ability to drop a frag grenade upon death.
5 Deaths - Deadman's Hand (Lv. 57) Suicide bomber, run around with C4 in your hand.
5 Deaths - Hollow Points (Lv. 71) Stopping Power