Answer:
Black Suit Ending- You realise your the power that the suit has. Symbiote Black Cat and the civillians infected by the symbiotes await your commands. Also, Symbiote WOlverine is sent to bring back Spidey, alive or dead.
Red Suit Ending- You breifly narrate how New York recovers, but Mary Jane catches you doing that. To make her forget, you take her for a swing around the city