US infantry at least have to go back to base to pick up their Bazookas. Volks don't even have to do that. The shrecks just appear in their hands.
Once again, weapon racks are a perfect Example for a good gameplay mechanic. It has clear advantages ( beeing able to equip every squad with it) and clear disadvantage ( go back to base to pick it up)
You can apply that Logic vice versa, shreks cant be equipped on every squad, but you dont need to Run to base.
Most abilitys/mechanics should follow this imho. Always clear dis/advantage