| Breakdown
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Objective Soldiers: Sgt. Belinki
Plot Soldiers: allied tank (I think he's invincible until you reach the HQ)

You need to protect Belinki (under the tank) while he makes repairs.  You have
a DPM, so select it, prone while peeking from the side of the tank (facing
roughly east-northeast), and deploy the bipod.  You should have no problem
mowing down any German foolish enough to run out in the open long enough for
the repairs to be completed.

Once done, hop in the tank and tear up any idiot German still hanging around
(if you like, you're impervious to bullets), then head west and follow the
allied tank.  Just remember that Panzerschrecks will still damage you and to
drop behind cover to regenerate health if necessary and you'll be fine.  When
dealing with enemy tanks, try to move back and forth across their line of fire
to avoid getting hit (much) or, better, just poke out from behind cover to
fire, then retreat to reload.  I'm afraid I can't be too specific here, since
infantry just comes from everywhere and the tanks don't really follow a pattern
either.  Hell, the friendly tank might even kill the latter for you.

After all of the enemy tanks are killed (there's three or four), you'll be told
to defend your headquarters against an assault.  Get there, kill everything 
that shows up, including the tank, until you're told to head inside.  Do so,
grab the first aid kit (it won't carry over, but hey) and radio, then leave.