The rules for bidding is whatever the two sides can agree upon. That said, most here would only allow one unit per territory or SZ and only where one of that nation already exists.
Of course you could have a Carrier, but it could be destroyed before you used it, of course.
Axis & Allies YouTube Channel/Podcast
Does anyone want to co-host an Axis & Allies YouTube Channel with me? We can take some time planning a few episodes, discuss strategies and run simulations to give listeners statistical probabilities for success in different attacks. We can even use some discussions posted on this site as outlines for discussions.
I am very interested with this idea. I have a channel running right now called “Hunter Jones”. Just send me a PM or respond to this post.