i spawned on fb with mec grenadier selected, when spawnd in i was invisible with what looked like the militia grenadier kit in the kit menu, but i could not see the gun, it would fire and the binocs worked without the black edges just full screen zoom.
i then picked up another kit and could now see the gun model but not a sight. the gun looked like it was being held by my feet as i could only see top of it. Game ended soon after and everything was back to normal on next map.