this makes me to use my freeze again

what is the best m1 i can buy? both in hull and gun.

Hi guys! :D I have a doubt. :huh: Please clear it. :( Now i m in the rank of FIRST SERGEANT. Now i have all the guns and hulls in m0. And i have now 5784 crystals :D . Now after deciding that i have to concentrate on a particular hull and gun(is it a good idea?) But i am confused that in which hull and gun i have to concentrate and play :huh: . Please i need answers. (NOTE:- I have now firebird,smoky and mammoth M1) ( :D :D I hope i will get the answers soon. :D :D )