Firing from enclosures
Firing anti-tank weapons indoors can be very hazardous to your health. Avoid doing so when possible, as the backblast can kill or seriously injure you due to the restrictions of the structure.
Soft-launch weapons like the Javelin or PCML can be safely fired out of an enclosed space, but RPGs, AT-4s, SMAWs, and other common hard-launch anti-tank weapons cannot.