Can't pick AI defense tank battles?

I’m not exactly sure why, my account is level 6, I have multiple tank crews all within the same 1.0-2.3 BR range, have done all the tutorials for ground battles, and have played multiple arcade battles against players yet I cannot select the pve tank battles, it’s not even there the only option I have available is Ground battle, no arcade, no realistic, and no pve sub choices JUST ground battle. I have played with my friends in the pve mode and they can pick it just fine, but it’s not there for me.