Capitão's gadget is a crossbow that can shoot two fire bolts which will engulf an area with flames, and the crossbow can shoot two smoke bolts which will engulf an area with smoke.
Caveira doesn't have a gadget but has an ability called the Silent Step, which allows you to move and barely makeing any noise. You can use the ability anytime but it does have a cooldown time. Also while activited, Caveira will leave no foot prints for Jackal to track.