Oooh that map mechanic sounds interesting.
Yeah the walking animations are a little bit wonky. Sometimes it looks like I was moving sideways, even though I'm currently moving upwards.
Different weapons sound exciting, though I agree it may be a huge undertaking. It would be nice, although maybe hard to implement, if you were able to give different weapons to different teammates.
I agree that having the whole team shoot at the same time is overpowered. Though it would be justifiable if the enemies are also overpowered ;)
The chain reaction thing is unfortunate, though I imagine it would be really satisfying to see a whole bunch of drones exploding from each other.