Let's not hypothesize about Esprit.
Anyway, I did have some issues with the EvoII battery door popping open when I played yesterday... but that could have been just me dropping my hopper every time off the break.
That's what I get for trying to use a powerfeed elbow on a warpfeed Emag body.
Needless to say, the hopper and elbow would spin and fall off my gun off of the break every game.