Reinforcements?

[A.Saturnus]

Reinforcements should be fine now. You can only control 20 units at once. That´s the way the game is designed and that can´t be modded. If you want more, you have to put them under AI control. AI reinforcements will be delayed if the program thinks your system might have a problem. If you don´t like that feature, you can turn it off.

[Mooks]

I just wanted as many I can fit...

And its useless to put your forces under the AI cammand, the AI is even worse when facing another AI.