I have been away from the game for mostly around a year now, so lots of new content has happened since posting this almost 3 years ago. I do know that recently, on the occasion of the anniversary of the end of WWII, they made temporarily free all weapons related to that period, era and event.

My tip, however, for the unlocks, is to buy credits at a discounted price, either through here or through Android Playstore, as they do get discounts there and where you can use Google Rewards for the purchase. That is particularly what I did.

where is the promo to unlock the weapons? because you didn't put it in

nice