The stock tyres on the Trek 6′ series bikes really put me off Bontrager tyres and it was a long time before I got talked into some Mud-x’s which, despite their name, are great all round tyres.
However, there is nothing wrong with the fire xc pro’s for the type of riding you are describing, as long as you can get them cheap enough
However if you not in deep mud or wet roots then Rocket Rons are fast and are a good do everything (else) tyre for me.