any tips on maps like gorge/dust bowl
Dustbowl isn't exactly a "Scout Friendly Map" It's known for bottlnecks and small spaces. Scouts are at their peak in open areas where they can move around and dodge.
I'm not saying scouts can't play it, there's two servers regs on dustbowl who main scout and tend to kick the other team's asses. (Me Maining sniper, they tend to go right for me)
Generally stage one and two are the best places for scouts who want to solo, stage three is very sharp corners and a LOT of sentry nests. (Oh god, all the minis... the horror...)
Defensive scouts on dustbowl seem to have it easier than offensive scouts. Due to Blu not having as many sentries as Red, and the way Dustbowl is designed to give defense an edge. As a scout you're going to want to annoy the holy fuck out of the snipers, engies, medics, and spies. There's only so many sniper spots in Dustbowl, and all of them give a scout an easy way to flank and kill the sniper (Taunt kill if you're ballsy).
Engies are going to build in the same spots every sodding match, memorize those places. Bonk past the sentry, and take out the engies teleporters and such. He's either going to run back to base to rebuild which allows your team to kill his nest without him repairing it. Or his team won't have a way to reinforce the point.
Your mortal enemy on Dustbowl is going to be mini sentry spammers (I'm looking at you Mocha) I've seen about three matches where Red had at least eight mini sentries and somehow it worked.
Medics are going to find a pocket and stick with it, you're going to want to sneak up on the medics and take their asses out. The only times it might be hard to do is on stage one in the nest Blu tends to build, second stage, same issue, third stage gives you some flanking room with the tunnel though. Don't hesitate to bonk a medic who's about to pop uber which in turn kills his pocket. He's then an easy target. Remember, first stage a scout can jump accross the gap neat second point and get into the sniper nest where blu likes to hide. Use that to harass the engies and everyone else. Hell, get bonk, run in and open the gate for your team to wipe them out. (I do it all the time and it feels SOOOO GOOOD)
Then you have spies, you and the spies are probably going to be taking the same paths, both of you need to flank to get the most out of your class so you're probably going to run into a spy or two. Milk the bastard. Milk him good. Scout being the fastest class, you're going to want to check around for spies when you can (Don't do it all the time, just when you feel like there's spy, check) You'll be able to chase his ass down, milk him, and beat him with a fish.
Oh god, I'm ranting again. Alright well hope some of this helps.