tank cannon is later too weak

[Tribulation]

You're right, I didn't understand it that way. The problem I see with that is the following: if someone saves for a HT or a slightly cheaper tank, he will probably have only one weapon, while others who focused on more weapons at least keep the advantage of a higher dps. If the cannon now becomes as much better as the tanks are more expensive, that might overpower them. Sure the cannon is rather weak later on, but that's a disadvantage everybody faces equally, and I believe that more expensive tanks, in relation to cheaper ones (e.g. LT and HT), are already strong enough, there's no need to give them more power by giving the cannon of more expensive tanks a higher dps.