
 Re: HELP: Putting Guns in the Actor Viewer + offsets
Code:
AddActor = AHuman
   CopyOf = Soldier Light
   InstanceName = Offset test
   Buyable = 1
   AddInventory = HDFirearm
      CopyOf = YOUR_FIRE_ARM_HERE
There's a pretty comprehensive guide for offsets somewhere. Try looking in the modding guide collection thread.