guys will i get xm8 and berreta

well im going to get 59,000 zp and im gonna buy the name cards for gp i already have m4 custom, kriss and m4 silver so i dont want to blow it off on zp crates i want gp crates im aiming for xm8-adv and berreta if i get 500,000 gp whats my chance of getting them 250,000 gp for each crate thats about 156 xm8-adv crates and 156 betteta crates im not that lucky but do you guys think if i dont get both will i atleast get one