Work the same with my previous mod, the different is launch a chemical contain that kill everything ~
(Used with caution, you might kill yourself with it too)

Press B to use

Chemical available:

M4✅
AK-47✅
MP5✅
UZI✅
TEC9✅
SHOTGUN✅
SPAS✅
RIFLE✅
COLT45✅
SILENCED✅
DEAGLE✅