for sequel: have ammo count with momentum of player, all gfx options in pause menu, game autopauses when you click away(imcluding sound and in menu), guns show level progress in menu, fix your description, and actually write we can use numbers to select guns.
I played this some time ago, and I must say the darkbase games are a big fail, so few rated coments and the scores don't keep on getting better on the defense spinoff.
 "Vital Bloodshed"){kind=icon}
 "DarkBase 3 - Phoenix Team"){kind=icon}
 "DarkBase defence - Reloaded"){kind=icon}
 "Diamond Hollow"){kind=icon}
 "Bullfist"){kind=icon}
 "DDTank"){kind=icon}
 "Cathode Rays"){kind=icon}