Today, Gunner builds focus mostly around Twin Machinegun use. Here’s a few sample builds for using guns with Gunner. Not all skill points are spent, because after taking the important skills, the last few points are really down to personal preference.
Once upon a time, Gunner was a highly compatible class, able to give any weapon massive burst damage. Unfortunately, Gunner burst with cross class weapons was so exploitable that players could kill raid bosses in seconds. Slowly, Sega slowly restricted Chain Trigger, most recently putting a 999,999 damage cap on selected bosses. That greatly restricts options for Gunner, but at least makes things simpler – there’s now only three classes that really work in most situations.
Selphea is just some random gamer who can never decide what to play and runs weird builds. But hey at least they work!