-The first person camera view is bad, since the marine has a very low long range and not enough damage power to kill a zombie, ditch it out and using the esc button as well instead do a chat command
-Cinematic takes too long to finish only showing a spam fest of units clashing each other
-when you die, you become a zombie marine and ends up attacking a sudden pop out marine base, without hordes of zombies, creeping it out in hell mode is ludicrous.
-The game has no mission whatsoever, just a hack and slash simple type of map.
-Terrain has no atmosphere of decay or ruin type of event
In short, map needs more work.