All ranges warrior
Pretty much anything is viable, might not be most effective, but it surely isn’t that bad. Bow has great Aoe fields and rifle is good single target DPS
Well to optimize it should I go for a crit build?
a crit build is indeed the way to go. you don’t need to go full zerker (i think it’s pretty dumb to do so in general) but 50-65% crit damage is pretty good and will allow you to crit for 10k easily with the rifles kill shot.
at that point since you are not going to be cleaving you might have trouble building adrenaline. but luckily berserkers stance is a utility you have that is actually surprisingly good.
generally its probably best to build your traits towards one ranged weapon, not both. if you build towards bow then you have to take traits away from raw damage. if you build towards rifle then you have to take traits away from defence.
luckily building your traits towards one ranged weapon and one melee weapon is very easy to do.
Generally a pure crit build is the best choice for a Ranged Warrior, since toughness/vitality doesn’t really contribute much to the overall survivability if your sitting in the back dropping dps at range and can run with a huge headstart if you need to get out. I have seen a few Banner/Support/Ranged warriors around in WvW, by getting some healing gear or boon duration to bring some team/group support without losing much dps wise. Full zerk will definitely give you your best bang for pure dps, but I would much rather have someone be slightly more beneficial to a whole team than just his pure dps, since it brings more to the team/group/zerg in general. I have also heard of Condition/support longbow warriors that lay out some decent burn +bleed damage, and give good aoe support buffs/heals but their main role is still damage. My suggestion though is to use scholar runes for more dps if you want to spec into some supportive traits/gear, that way your dps is still very strong.