You know the trick to killing a GB on a Raider is control and Killing them first. They're not tanky, they can go down pretty fast. And your ability to go into cloak is only nullified if you build TOO much aspeed and not enough power. GB never gave me issues on my skill type, a well timed stun phoenix slash and screw attack and the melee's + flame slash from cloak into a few more melee's and they'd drop.
I mean I get it, GB's are incredibly offensive and everyone [well every raider] wants to complain because it's their anti-class and Raider have always been spoiled, but really GB's are squishy. They have laughable MDef and mediocre Defense. Their Dodge isn't even worth mentioning. Champions can tear them apart, A frost mage can CC them into oblivion ruining their passive strengths like Aspeed and Movespeed while Lightning Mages can Stun the ever living tar out of them and kill them in the down time. Dealers of all types just blow each other up, and a smart Raider can beat them unless they're just kicking back meleeing. GB's have better melee, it's just a fact. Get over it. Doesn't make them the end-all class people make them out to be.
Feuer you forget that I main a bow scout, I very very rarely talk about raider on the forums lol. Bow scouts get dropped in seconds by gun bourgs, and yes my raider is tanky enough to cloak in time to get away or kill the gun bourg before it kills me