All Lethal equipment can deal lethal damage, hence the designation.
Limited-per-life items that harm enemies, usually in explosive fashion. Think Claymores, Frag Grenades, C4, and more.
Frag Grenade
Cookable fragmentation grenade
Unlocked: Default
Proximity Mine
Proximity-triggered explosive that launches in the air, and deals heavy damage to the surrounding area.
Unlocked: Default
Drill Charge
Charge with a thermal lance that can burrow into surfaces before exploding.
Unlocked: Level 7
Molotov Cocktail
Improvised incendiary device that explodes on impact.
Unlocked: Level 17
Semtex
Timed sticky grenade.
Unlocked: Level 20
C4
Large explosive that sticks to surfaces and can be detonated remotely.
Unlocked: Level 23
Claymore
Proximity-activated explosive mine.
Unlocked: Level 25
Thermite
Explosive incendiary device that sticks to all surfaces.
Unlocked: Level 36
Throwing Knife
Retrievable knife that is lethal on impact.
Unlocked: Level 54