I love this game, but the last boss is impossible. Once he's at like 20% left, his attacks start doing 75% of your hp, and im fully upgraded. Its hard to dodge when you have 100 enemies on you pinning you down.
Very fun game, if you want to capture a city, buy a Vanguard ship, hire four other guys, then buy them the best suit and weapon. Attack Citys with low population since they do less damage.