Well i can confirm this in one round where i was a brig phys i saw him welding the vents to armory and he even tried giving me a bulletproof vest and a disabler
all on green alert und with no threats except an ashdrake in the mining base.
well i do not use them i mostly never even use my combat shotgun
but i find welding the vents of the armory with any danger to it ( or ones thats are confirmed a bit bad too) also you shouldnt use contraband for your own personal use.