Doctor buff
New ability: Shockwave. Let Doctor target a distant gen the way Freddy can. He summons a hallucination of himself that grabs onto the generator and sends bolts of electricity into it, causing it to overcharge. Any survivor working on it or within a certain range is shocked, unable to move for a few seconds and sent instantly into madness 3. They also scream and the Doctor can see their location.
A few add ons are altered to do different things with this power. For instance one doesn't shock survivors but instantly regresses the gen a certain amount (combine that with Overcharge!).
Maybe another add on could allow Doctor to see what his hallucinations see for a couple seconds.
These changes won't increase his mobility but they'll give him more map pressure.