They could be armed with Apples for all it matters, even in official games it's not important what specific weapon they hold, no one expects you to own 4 command teams for each unit, just to cover all the options
My command teams and infantry teams are all set up for a specific list, when i use them as other things, no one says a thing about all the Fausts, or Assault Rifles. As long as you tell them when they ask (tell them before they ask too)
The new Panzergren boxed set from
BF is all plastic, goes for about £23 on most sites, 4 tracks + a /10 option, full platoon of infantry, bases and decals.