This is pretty neat. The concept kind of reminds me of a 2D game called Altitude, where a bunch of planes flew around an arena and fought each other. I love little multiplayer games like this. Couple things: there's a huge disparity between button presses and shots fired; I thought it was just because I was on the server so I tried it in singleplayer, and it was exactly the same. Same with spawning in. It just takes forever, and seems to happen randomly as I mash the button, like it's waiting on a tick or something. And the AI don't have that limitation so they just rapid fire while I mash to try to spawn in. So the inevitable result is my death.
But keep up the good work, this shows promise!!