I find the last mission, entirely ridiculous. There is no items/health restores and the whole platform is occupied by a dozen enemy colons, while they gain free kill streaks as soon as they spawn and set up sentry turrets. Furthermore, they also have lasers and rockets firing at you, the rockets are strongly heat-seeking which makes it extremely difficult to escape them without running too much to attract the enemies, while the laser... doesn't even affect the enemies. And on top of all that, half of time, they will spawn right beside 3 enemies, in which you get insta-killed. It's called spawn camping, and the game seems to encourage it. I passed it regardless, but the mission wasn't fun anymore, it was just annoying.