I think cruisers are fine how they are. Tac bombers too. I buy a few cruisers as america for bombards, and a lot for england once the german navy is dead. Although destroyers are more hit efficient, cruisers also bombard, so it’s like killing two birds with one stone. Just buy enough cruisers to defend from the german air-force, and then you are not only protected, but you get more hits on invasions. And tac-bombers are frickin 1 ipc more than fighters. just one. Honestly, it’s better to have a unit with 4 attack and 3 defense than the other way around. Why some may ask? b/c you will attack with fighters more than you will defend with them. With inf, this is usually not the case. Like on the russian front. You inf will attack and take a territory. Then they will most likely die that turn, or possibly the one after. Nobody puts their air-force where the enemy can attack in anyways, not only b/c of them having to land back in friendly zones, but b/c you don’t want to have them destroyed on the ground.