Bars are not LMGs; they are like STGs, and PGrens/Stormtroopers get 4 of them. So, nope. Nevertheless, we have already nerfed the veterancy bonuses of Riflemen on WBP.
We have already limited Sappers from picking up 2 Bren guns.
Limiting Tommies from picking up Brens requires other types of changes to compensate for the complete lack of utility. Those changes have been deemed out-of-scope. So, not yet.
they are like STGs ?!! BAR and Bren are Light Machine Guns