Limiting to one team but selling the other commander all but guarantees that everyone picks arnie. I'm guessing it's so we don't get the free tank or airfield early as you don't feel confident you can deliver on it... Now back to not selling arnie are you insane? you would sell so many of them because people love arnie the only thing you accomplished by selling one over the other is that you made it impossible to pick the other team it's not going to drive up engagement if you didn't sell either then people would have a decision to make and probably still go arnie but if you sold both it wouldn't matter as players would not feel forced into going one way or the other please reconsider this decision either make the ops for both commanders or sell arnie aswell its like wargaming does not consider how doing something one way effects everything else.
I did post most of this on ask the team but figured I'd get others opinions here aswell.