Wave stallingEditZAC fighters deal fair damage, and draw considerable enemy fire. However due to the nature of ZAC fighter AI, they can cause problems for some bases:
-Fighters may clog and idle in one corner or direction of a map. They may be moved meticulously by hand to more preferable locations to fight in.
-Fighters tend to engage enemies outside of natural, unimproved ranges of most towers. If the ZAC fighters are unable to successfuly eliminate enemies, enemies can simply pile up in large waves, and then advancing towards the players' base. Bases that do not have chargor range stacks may be constantly unable to engage enemies skirmishing with ZAC fighters.
X-ZAC AssimilatorThe X-ZAC Assimliator upgrade becomes avaliable after rank VI. The upgrade costs 2.000.000 gold for each wargate. The upgrade gives the wargate and its assimilatees a different model texture, offers +200 HP for the assimilator and +50 HP for its fighters, damage increase for the ZAC fighters, and improved stun capabilities. Previous upgrades are kept through the upgrade
Dominance: Fighters start at rank 2-7 (6 levels)
Turbo: +30%-165% attack power to fighters (10 levels)
Final Armada: R1 + 1 fighter. RII +2 fighters (2 levels) [3 Fighters total]
Occasionally, if Oblivion is destroyed near a ZAC fighter, a pair of Oblivion arms will appear on it. They are fully functional and will engage and inflict massive damage on enemies. The ZAC fighter will continue to search for and attack enemies, and its normal weapons will remain functional. The arms will disappear if the ZAC fighter is destroyed or if the round ends. Though, now it just seems to crash the game with a specific error message telling you to refresh.