Here's a basic list:

German Rifles
Gewehr 98
Karabiner 98k
Gewehr 41(W)
Gewehr 43
Fallschirmjaegergewehr 42
Sturmgewehr 44

Russian Rifles
Mosin-Nagant Model 1891
SVT 38
SVT 40

German Pistols
Pistole 08 (Luger)
Walther P38
Walther PPK
Broomhandle Mauser

Russian Pistols
Tokarev TT-33

German Machine-Guns
ZB 26
ZB 30
MG15
MG34
MG42

Russian Machine-Guns
DShK 1938
SG43
DP28
Maxim Gun

German Sub-Machine Guns
Steyr-Solothurn Sl-100
MP18
MP28
MP34
MP38
MP40

Russian Sub-Machine Guns
PPD 1934
PPSh-41
PPsh-43

German Anti-Tank Weapons
Raketenpanzerbuechse 43
Geballte Ladung
Puppchen
Panzerwurfmine (L)
Panzerfaust 30, 60, 100, 150
Panzerbuechse 38
Panzerbuechse 39

Russian Anti-Tank Weapons
PTRD 1941
PTRS 1941
Soviet Dog Mine


I hope that gives you some sort of start as to what you can look for. That list is in no way 100% complete. Many variations of weapons are left off intentionally. Let me know if you have any more questions.

Langemann