MBEnclove gave me some advice on how to dps for Gadgets. Basically clip all damage powers, except Gauss Grenade, with defib.
Gadgets DPS loadout looks as follows:
4. Gauss Grenade
5. Cyro-foam / Neo-venom / Neural Neutralizer
6. Vacuum Bubble
1. Clip 2-tap-hold combo with Cyro-field, Intimidate, Defib in this order.
2. Clip 2-tap-hold combo with Gauss Grenade.
3. Cyro-field and Intimidate have the same cooldown, repeat step 1 when cooldown is up.
4. Fill in rotation with Cyro-foam / Neo-venom / Neural Neutralizer, clipped with Defib.
5. Goto step 1.
* Note: This DPS rotation assumes sufficient power provided by controllers in your raid. If power is an issue, don't clip with defib.