Made a lil and very simple (yet exciting hopefully) 128x128 sp mission of the koenigsplatz battle this morning.
The game has a duration of about an hour as the objective is to hold ground for an hour or so.
The gameplay is designed around strongpoints.. positions on the koenigsplatz with FLAK guns for AT support.. since these guns are about the only means of defense against tanks.. save for maybe a handful of panzers and AT infantry... the frontline will more or less be where the foremost at guns are. Most FLAK guns are static.. so the point is to hold foreward positions for as long as possible and knock out as many soviet tanks with every gun before it is overrun. There are no reinforcements for the player.. so tactical withdrawals to the next strongpoints are imperative.
bitmap:

The mission is almost ready.. will upload it next week