It depends on situation on the map. If there is no tunnel to return to the hive on the line onos is holding it's really strong, even with gorge. It works with boneshield, so regen won't get cancelled by random shot. You've got full control until marines get jetpacks.

Camo Skulk might be a bit stronger in CBM, but in vanilla i dont believe its anywhere above C tier
Vamp Fade, maybe closer to A tier than A+, not completely sure
Regen Onos tho? may i ask why?

actually vamp fade overestimated for sure

camo skulk and onos regen underestimated a little