I prefer gunning status wise. So I would recommend using Gigginox, but also Uragaan, due to the recoil of Status shots or possibly even Bnahabra+ Armor. Also keep in mind what part of the team you wish to choose. I do a lot of support which recommends Coliseum Armor, but that also lessens your quest rewards. Also, be careful with clusting, because as a gunner I know how it can be easier, but it's also not very polite online, and is pretty OP. So personally I think status and support are good gunner positions rather than clust.