A broken, uninspired game that fails in every category.
This game hits high in about every cliche an top-down shooter should NOT be. Broken and/or glitched levels never fixed upon the initial release, check. Unbalanced difficulty, check. Horrible (read: non-existent) checkpoint system, yup. It's all here and in abundance!
The graphics are uninspired, the characters are cardboard racial stereotypes and there's little gameplay merrit to be had. You are always pointed from point A to point B. Each level recycles objectives that range from defending an object for a said ammount of time to surviving from increasing waves of enemies. If you manage to find anyone willing to trudge throught his hell, it will take you about 3-10 hours, depending on your combined skill as a group to see everything this title has to offer.
If you like castle defence games and/or co-op RTS-shooters, don't bother with this one. There are better games out there dat deserve your attention!