sorry for the confusin i mean to say buying m2 and m3

i hope u guys help me out with upgrading my stuff ok i have got Ricochet M2, Thunder M1, Shaft M1, Wasp M1, Hornet M2, and Hunter M1. so i have about 230k+ and im also wating for the 50% off sale is upgrading Thunder M2, Shaft M2, and Hunter M2 is good idea? im also thinking in future want to buy Isida is it good gun? thanks