Very interesting and potentially fun idea for a twin stick shooter; I like how the delay between reviving a soldier and them getting back up changes their position when they start moving in tandem again. That could impose some interesting considerations on player movement and positioning for gunfire.
Game speed however is definitely too fast and the overly snappy limited 8-way movement means failure occurs all too often. It's also annoying how sometimes I don't start with a single battery to use on my downed comrades and I need to be immediately over them to apply a charge which is difficult to do in the heat of the moment. Sometimes I forget that I don't have any batteries because the indicator is all the way at the bottom of the screen and other times, pressing the space bar just doesn't work as I'm running all over the place.