The Allies having complete domination over the sea helps a lot. The AI is stupid as fuck. The US and the Soviets could easily steam roll through Germany but I realized the AI tends to only send 1 or 2 infantry divisions to attack, no matter the force defending the area. I would have some weak ass Italian infantry division attack my position of 2 Armor divisions and 4 mechanized infantry divisions. At least the sheer number of Allied troops help hold a defensive line along the territory I conquer. The AI US did impress once though by encircling German forces I was having trouble punching through. It is 1947 now and we are creeping closer to Berlin.
Yeah I noticed that too. The AI always launched weak invasion orders, and if they take the port then they start reinforcing. But as long as you can keep them from landing, they're pretty easy to deal with. Even when they do land, I tend to let them take a province or two, just so I can cut behind them and cut off the shore. Sometimes it works better than just suppressing them, because it stops them from reinforcing. Depends on the invasion force, reinforcement rate, etc.
Are tactical bombers better for supporting ground troops than the lighter CAS planes?
Naw. They aren't particularly great at anything. But they can do CAS, Naval Strikes, Strategic Bombing, and Port Strikes, which makes them versatile and IMO great for a small nation that can't invest a lot in an air-force. But they aren't near as good as their specialized counter-parts. But with Spain, for instance, I found building those along with building fighters gave me a well-rounded enough air-force to support my ground forces, where most of my focus was, but also control the Iberian Coast, Mediterranean, etc.
I tend to specialize with nations that have a ton of factories, but if I go Australia or something then I'll use tact bombers and light fighters. I might spin up a game with Britain and see how far I can get with mostly focusing on my air force. Like, can you successfully invade Germany with just a handful of armored division and a ton of air support?
Figuring out that stuff is where all of the replay value and fun is for me. Well, or misery depending on how it goes. The first time I ever got the "game over" screen was heartbreaking. I let my people down.