With a scout you have to be at a long ranges and strafe A LOT. There will be many times you'll be fighting a sniper and you'll need to move around quite a bit. To be honest they can't really compete with most primaries in the game unless you're pretty far out. I basically use scout/shotgun combo when I run my scout rifle because I need the up close power too. It's not like suros where its effective at all ranges. You're going to want to always have a surprise advantage and a good place to shoot from. One good thing is scout rifles make better use of cover because they are semi automatic. You can pop in and out of cover much better than an AR user or a pulse rifle user because they have to expose themselves far longer to shoot than you do. I recommend the high impact 3 shot scouts. Crypt Dweller has the lowest TTK but I find that it's hard to hit every shot reliably. The three shot ones feel much better and are smoother at long ranges and to hip fire (which you will actually want to do sometimes) I use gheleon's demise even though my perks suck for the most part. I only use it on blind watch, skyshock, asylum, and shores of time though. Anywhere else you're going to feel out of place. Vision of confluence is a great one too, if you have it. I prefer firing it semi auto at long ranges but it's nice because full auto really helps up close. Just know the limitations of your scout. They aren't like pulse rifles where they're good almost anywhere. But if you use them just right it pays off. Gheleon's is Definitely my second favorite crucible primary. Praedyth's timepiece is my first. RIP timur's lash. It did not survive the nerf well ahah. Edit- use my scout on bastion and first light too!!