I am actually doing soviet tank riders (DML's kit) and I had the same problem. I used Tamyia 3mm masking tape. I cut it into thin strips, I'm talking real thin. I did some extremely close and tidiuos super glue work to the rifles and helmets and walla! I painted the strips too to make the desired effec. The tape naturally sticks to the rifle so it was easy keeping it there, I just had to apply super glue over the whole strip to make it hard so it wouldn't be flimsy. I'll try to get some picks up, but hope it helps.