never found cannon rams??

[Black_Shark_dragon]

hey guys i found these cannon rams and i got no idea were they could be found or if someone have them. idk if they can be found in cannon defense.. cause i gone to wave 102 and all they give you is the rev.cannon ram and the hunted cannon ram. maybe if you got to wave 200 and today that have not been done..( to my recors) or maybe is in the sea out there like the master gunners.. anyway this are:
Shadow Crow Cannon Ram
Cerebus Cannon Ram
Behemoth Cannon Ram
Spectral Cannon Ram
Possessed Cannon Ram