The protaganist's saviour in the opening sequence
I've only watched it once, but I'm assuming the Protaganist's saviour in the opening sequence when he first spots an inverted bullet damaged area of the seat/floor was in fact himself (or one of his team), later in time, or operating whilst inverted?
[Just re-watched it and Neil's coin with a hole is prominently featured after he shoots the Protaganist's assailant, so that answers that.]