Shoot at the molecule, make him bubble up, and find cover (teleport/speed helps in this regard). Count to three, bounce a flashbang at him, and reap an easy kill. Being immobile for 6 seconds is a huge vulnerability. Flashbangs--and smoke grenades--are criminally underused in WCS.

I used to think molecule was OP too, and then I started using more flashbangs. The race is fine as is, IMO.