hello good guys

I finished the Reichtag level and I can't walk away . I killed everybody on each side both Jerries and Commies except one guy . I blasted everything that can be blasted both sides . I completed all the mission objectives . And here I am with all my health plenty medikits, a heap of ammo for the sniper rifle and no more no less than 750 rounds for the MG42 but the door won't open .

What did I do wrong ? Did I overdo it? Is it something that I said?
I feel like a mushroom
The "brass" up above have no concern whatsoever for the dedicated rank and file down below

#1 Stealthier ?
Am I supposed to walk in there unnoticed and let both sides have their fun with each other and complete my mission
without making a mess ?

#2 Faster ?
Am I supposed to complete the mission against the clock ?
(I must admit I took my time and fun )

#3 Waypoints ?
Am I supposed to complete the tasks in a definite order ?
(blow this before picking up info and such ...)

Note : tired AI ?

About the guy who isn't on the body count
If you go by the book and enter the Reichtag through the
hole in the wall, sweep away everybody and return, there
remains two guy at the main gate . If you don't kill them
good and quick a sniper appears on the rooftop in the street
you used to come in at the beginning .After exchanging a few
shots he just vanishes .Either I got him or he got bored and
just walked away back to his coffee and chat with his buddies.

About the Russian tank crew
The gunner sure is eagle eyed :he can spot and shoot you miles away.Now if you crawl you can come next to the tank close enough to jump on your feet and go touch it.For a second the turret jiggers trying to point towards you.But then everyone seems to loose interest ,the turret points away and the driver doesn't bother moving or reversing to run you over flatter than flat!...AS if they thought :"it's fate ,let's have it and get it over with..."

I sure would appreciate any kind of help