Once you reach level 50, speak to Oberstleutnant Claus Von Stauffenberg at A Outside Tobruk and ask him "HERO", then agree to his mission. He will ask you to help thin down the enemy numbers and bring him 25 American/British Dogtags as proof of kills. Once you give him 25 Dogtags (one at a time or he loses count) you will gain exp and the whois.
If you want the an Afrikacorp service cuffband ask Oberstleutnant reward and then type YES, then you will loose 15,000,000 Xp, but in exchange you will get the anAfrikacorp service cuffband!
NOTE: You need to have 40,000,000 XP or more to get the item.