You can disband unitys for more credits. Remember, you don't need to hire every single unity to win. Heroes, swordsman and catapults/longbows will easily get you through the first few levels with some good strategy.
oh ok thanks alot.I didn't know that.
Lol I accidently wrote unity instead of units I've been using unity game engine for WAY too long.
same I also have been using it for a bit to long just practicing coding.