As I've said before in similar polls, the King Tiger and other heavy or late-war tanks and assault guns don't really add much to the game. Adding them also presents a number of problems as far as maps and balance. If we stick them in on existing maps, they can screw up the balance of the map and make gameplay less fun. Desinging new maps is fine and all, but I just don't see them being that much different from your current style of tank combat.
Early war tank combat, however, is different because the designs of tanks were so different. As I understand it, design philosophy began shifting for pretty much everyone after about 1940/1941. It didn't all change overnight, obviously, but there were definite changes.
In light of that, and to expand the TYPE of gameplay and tactics involved, I'd MUCH rather see the additions of tanks like:
- Pz II
- Pz 38(t)
- Marder series
- T-26
- BT-7
or even other early war tanks that were holdover designs from the 30s (IE: similar to the Matilda I -- slow moving infantry tanks). This would require people to really change gears in terms of tactics.
For the most part, the King Tiger would be played the exact same way as every other tank is these days. Either it'd stand off and snipe at people, or it'd drive in close (and probably get blown up).
As a side note, from my experience in other games, uberweapons are generally a BAD thing in maps, because the team relies on them too much. Consider Black Day in July where the Germans have one Tiger, and a whole mess of Pz IIIs and IVs. By contrast, the Russians have a TON of T-34s, and one generally negligible KV-1S. If the Russians lose the KV-1S, so what? It's not that useful anyway. If the Germans lose their Tiger, they're at a fairly serious disadvantage because the visual range doesn't let them take advantage of their optics and gun strengths.
Now try to imagine balancing a map with a King Tiger and a slew of inferior tanks against a team of Russian T34/85s, and one of the heavier SU series or an IS-2. If the Russians lose the heavy tanks, no big deal, right? But if the Germans lose their Tiger II, they're in trouble because their Pz IVHs are still fighting an uphill battle against the T34s.
Why exacerbate this or go through the process, especially when there's the opportunity to play a whole new style of tanking?