Every mission is rushed and gives you a time limit to complete an almost impossible objective. On the defensive missions even if there aren't any targets near what your trying to defend, you somehow still end up failing the mission. Really poor game that I did complete. But my goodness what an annoying, frustrating, un-enjoyable game.
And unless you want a major migrane from constant missle lock beeping. Don't even bother playing online it's an absolute MESS