if u mean defending belinki when he is repairing:
run a little bit in front of the tank, so you have a pretty good view of the area. go
prone with your DP28 and press the action button to set up the bipod. whenever u see a guy
get close mow him down. they come from all directions so be careful. after a while you get
a message saying the tank is repaired, run to the front of the tank and press the action
button to get in.

TeeHee

Well, I might as well give you a walkthrough. Only if you say plaease. Nevermind. Here it
is. First,Find a good place to defend the tank. To avoid getting shot, use one
of the concrete barriers. After the German tank has been destroyed,
you need to get into your tank. Follow the tank into the city. Don't
stop to shoot the soldiers. Follow the tank around the first three
turns. Then go all the way down the street, and turn left. In this area
there will be anywhere from two to four tanks to face. Go the down
the street, and turn left. Head down the street again, and turn right.
Now head towards headquarters. When there, German tanks will be coming
from both sides. When the tanks are destroyed, park your tank, and
go inside. Listen to General Belov. Pick up the radio, and head back
to the tank. This took me 4 DAYS! I hope it takes you shorter.