Command "impulse 101" refills your health and ammo. It also fills your rage meter; on non-phlogistinator FTs, this means you end up with this annoying particle effect on your viewmodel that you can't get rid of by any means other than respawning. Very annoying when testing stuff.
Basically, the flamethrower code doesn't bother to check whether it's actually a rage-utilizing FT (i.e. the phlogistinator) when deciding whether it should display a "fully charged" particle effect on the muzzle of the weapon.
