thoguh it may be tempting, dont build bb's or cas. idk if others find them useful, but the problem with cas is that they arent as good as tac bombers for ground support, and as for groudn attack, theyll attack a random unit in an area and not attack the more vulnerable retreating unit.
im a sucker for battleships, but they rlly are a waste of resources. also, be prepared to reinforce gibralter, on the off chance spain joins the axis. its happened to me before >.>
one last thing, use a "defense-indepth" strategy for defending palestine and thje area around it. the italian ai is stupid and will assault the beaches there, often without sufficient support. tac bombers + any ground troops will result in dozens of italian divisions being wasted over time. in other words, allow the italians to land in palesitne, then cut them off.