Holding my own means killing them, 1 on 1. I'd say it's people who are my own skill level.
Ahh, k
With your other points, yeah, it may be possible to do those things, but there are other loadouts that are much more efficient at those jobs. So why pick Outrider sniper to cap, when a RL is so useful for some routes? Why chase with a LR, when it just adds another thing to slow you down?
Chasing with a LR = Get fast, jump a hill, pop a shot, hopefully get them to minimal health with 1 hit, fall back to earth. If done right, you fall onto a down slope headed in the direction you want to go for another shot if necessary.
If you fail to stop the capper, but are inbound on their flag on a halfway descent route, flow right into a capper role. Hopefully you have LO already at the enemy base that can help stop the cap if they weren't able to egrab, or at least create enough confusion for you to slip in for the grab. Makes it even easier if you're on TS or Vent with your team. If you know you failed to stop the capper, but you know your LO will be able to, let them know to not egrab, just prevent the cap, so you can get the good grab.
L:O is about fluidity. When people stick strictly to specific roles, you cant achieve maximum fluidity (hence the reason I always say players need to be able to fill any role), or you'll get caught with your pants down. Some people may enjoy that more than others.
So really, it's not so much about what loadouts are better for what positions. While that is true, don't limit yourself to that mentality. It's about the flow.
As for picking LR OR to cap, well, run a back route, good LO distracts, you garb falg, pop a hill, turn around, boom headshot anyone who's chasing you.