Hate to argue with ya, but the Tu-2 was about the same size and capabilities as the Pe-2. Both had LIGHT payloads. The soviets had only a couple of heavy bombers (TB-3, Pe-8). Almost all soviet bombers were light attack or dive bombers.
The Pe came earlier, was fast for its time, but had light forward firepower and limited bomb load.
The Tu came later ('44 bird) and was faster, could carry MORE, but still nothing compared at all to a B17. More like a B25.
As for the Mig3 and lagg3, I say make it a mig1 and a lagg3. The early planes should reflect the slow and less-adequate fighters of the time.
Why do we need a Yak1 and a Yak3? They are both veritable spitfires... Just put in the Yak1 and if people want a Yak3 have them fly the Yak9.
As for the I-16....
If this game ever adds small but nimble biplanes it will ruin gameplay. These rides out turn anything but are so freakin' slow that most planes can't even slow down enough to hit them....
As an example, the missions in IL2 have 109Fs taking on I 16s.. It's nearly impossible to hit the bastages because they turn on a dime and even tho they are slow you can never keep up with them. Chances are they'll NEVER get a kill on you, but it's a freaking waste of time, ammo, and it annoys the hell out of the superior plane's pilot.
Same would happen if we put in the Gloster Gladiator, the I-16, or anything on par with them. They would only increase the number of turn fights that lead nowhere because the plane doesn't have the firepower to shoot anything down, and nothing else can shoot them down. It's a road to frustration. As much as the Vvs needs early planes, leave biplanes out. Just use early lend-lease planes.