What exactly can the Pyro’s compression blast affect? I’ve reflected rockets back at soldiers, but I’ve had very sketchy luck trying to bounce other things back at enemy players.
You can reflect:
When you reflect projectiles they are promoted to minicrits (if they weren't), change sides with your team and ownership to you (with the exception (†) of stickies). This means, however, that they will still do splash damage to you should they explode too close. As for stickies You can still push those off points and doors, however, or even push them below the demoman's feet.
You cannot reflect: