actually the "escort mission" means that you use a mixed stack of multirole fighters and bombers.
whether multirole fighters themselves are viable in HoI3, it seems they aren't.
To me it seem that they have pitifully weak air-to-air capability. Back in HoI2 there were of course fighters, escort brigades for bombers, and the interceptors. In that environment the fighters really were the best choice (they were the most expensive option still of course)
In real life you escorted your bombers with fighter aircraft for a reason in WW2. The escorts had to engage and destroy enemy fighters, which were trying to shoot down the bombers.
The P51D Mustang for example, was NOT a good fighter plane simply because it could fly as far as the bombers that it was escorting. It was a good fighter because it shot down the most Axis aircraft on the western front in WW2, and thus protected the bombers and allowed them to do their job.
Likewise P51D was a good fighter aircraft because it was well rounded, it had good flight characteristics and performance due to good airframe, the Rolls Royce Merlin engine and the supercharger which boosted performance, it had good armaments - six .50cal machine guns, and it had good range with the drop tanks so that it could escort the bombers EFFECTIVELY.
Spitfire was of course an excellent fighter, same engine as Mustang, it only lacked the range of the Mustang.
Yet in-game Spitfire is a multirole fighter, with significantly better air-to-ground than Hawker Typhoon- the interceptor, weaker air-to-air, about half the airspeed of the interceptor etc...
I don't see how the Typhoon would have a significantly better air to air capability, there was even a spitfire version that had the exactly same set of four cannons. (Tempest had more cannon rounds though). But didn't there were versions of the spitfire with .50cal machine guns and the 20mm cannons, so overall the armament was pretty strong, especially against other fighters, against bombers the four 20mm cannons would be stronger though.
Something like half the airspeed of a Typhoon, no way?! Yes spit was slower than Tempest (the fastest allied piston fighter). Spitfire had better turning ability though.
If I'm not mistaken, the USAAF version of the interceptor in-game is Vought F4U Corsair, which has the exact same armament as the multi-role fighter P51-D, YET P51D is weaker in air-to-air.
Also multi-role jet fighters in-game, such as P-80 shooting star, airspeed around 500 km/h
So HoI3 doesn't exactly make much sense :wacko: