Heh, if it wasn't for the lag, you could just have the tanks not upgrade other tanks costs (just itself) and have giant wars happening rather than the skirmishes that happen now.
Performance testing makes it hard :/ I am quite surprised and happy that there are no comments about it being laggy but then I fear if I allow 2x more units I will have issues. Or other people will have issues. Maybe I create a special version and ask for some testing on Reddit :D That would be fun