I like the low poly realistic bugs. Reminds me of my childhood (?). Found it a little bit chaotic when you are shooting and the (plasma?) projectiles just bounce everywhere. It feels like you are not in control. Then again, it is a battlefield and the shaky camera helps to bring that sensation of warfare to the forefront.
As stated below, the difficulty is too low. The turrets can handle everything on their own, basically.
PS: It runs with difficulty in my pc too.