just to quickly add to that guideline- AR may not meet TGM in overall dps, but w/ full maintains and R2 + Mow Em Down adv it still preforms respectably. Sniper Rifle can also out-range some bosses like Gravitar and Frosty for an easy time (albeit w/ somewhat low-dps)
Another option to consider is taking rank3 AR and Tac Missiles in PA + Avenger Mastery. Pile on the crit/Dex and w/ AR taps ya get Relentless Assault built up and can proc AM for a fast-cast Tac Missiles. Since AM is heavily reliant on crits you'd want to go the KI/crit route for this sort of build, and prob pair it w/ Guardian's find the mark or w/ Vindicator's flat crit% boosts.
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Another option to consider is taking rank3 AR and Tac Missiles in PA + Avenger Mastery. Pile on the crit/Dex and w/ AR taps ya get Relentless Assault built up and can proc AM for a fast-cast Tac Missiles. Since AM is heavily reliant on crits you'd want to go the KI/crit route for this sort of build, and prob pair it w/ Guardian's find the mark or w/ Vindicator's flat crit% boosts.
- Be safe and have fun, champs - for science!