You should probably check Surgeon General's signature ability again. She gives her teammates both heavy regen and immunity every 30 seconds. This is not a cheater or hacker.
Hey there! There is actually a thread made specifically for these kinds of reports. The devs check it regularly, so posting it there makes it easier for them to take care of the problem.
Thread is here.
Djinn is seriously amazing. She's an absolute powerhouse when it comes to offense, and she can be surprisingly difficult to face on defense as well. Congrats!