Some other things you missed that are not balanced.
-Citrons shield is 600hp without being near allies which is what the game intended you to use it for (check in game description)
-Warp is way to mobile and makes fighting any scientist really annoying.
-Not that you missed it but healing is still way too high in almost all cases.
-The last thing engineer does is support.
-How could I forget brainium basher 9001 is busted
That is all i can think of.
While I do think BB 9000 needs a nerf its one of those upgrades where it takes time to use it correctly so new players or players that just got it are use to dodge (for me at least) I think it needs a nerf though.
