Nice one if you're bored but not very challenging
Two things: too short, and too easy.
The idea behind this game certainly has a lot of potential. Just too bad it's so damn short play. There's like, what, 4 missions in total? I kinda liked the last one, when you switch from turrets to a mech, but to be honest, this mission feels like it was taken from a completly different game. Doesn't suit the concept. And it's too easy too. If there were few other 'mech missions' after the last one, it would be a lot nicer IMO.
Overall: nice one, but it could be MUCH better.