Machine Gun build is so outdated…its really not best choice anymore.
as your stat and your lvl and rank…it still not far for you to change…as musket player i would not suggest u to take ac3…the best build u can make is like this
A1-QS3-A2-S1-Musket2
-totally into pvp…u will cry hard on PVE…and little advice if u aim on PVP u will dissapoint later…if u aim for pvp u better just take cleric…and this build choice will fck your aoe damage…u will hard to PVE and in rank 8 content…believe me
A1-QS3-A2-Falconer1-musket2
-Kind of ok for PVP but also ok for PVE…since circling will make circle area AOE def ration to 0 so u can make your Skill AOE…but its actually take long time for you to set up so in party PVE its kind of good and not so good…but if your choice if musket and want PVE falconer is a must.
but as musket player with QS3…i would suggest u to pick either SR3 or cannon c2…the reason is simple…this 2 class will give u good AOE and Good damage…and some cannon skil synergy with running shoot…
as for stat, stop str now, pumping more into dex…rank 8 skill just give ridiculous high base damage…u dont want to miss crit rate for those skill. imagine u deal 100k damage…if u got crit u will get 50k free damage…and that is ALOT…u dont want to miss that.