coupon weapons

Hello
i want ask about coupons weapons you already delete **** collection from coupons but there is no new weapons add or renew old weapons like m14 and golden uzi
please understand that coupons weapons for players play more than 300 crate and win nothing then we got 150 coupon from 300 crate maybe
so no weapons in coupons to buy no weapons in black market to win that really boring
please add new weapons in coupons and delete older than 7 month like you add new weapons in zp black market everyday