'Tactical Device' keybinding, what is it used for?

[Stolz]

I have played a few hours of both Havoc Warfare and Tactical Turmoil modes, and I have not seen yet any scenario where the screen suggest to use the Tactical Device keybinding ("Y" by default).

Does anybody know what/when is it used for?

Keybinding Switch to Pistol|Class Gadget (Havoc Warfare) is for med pen, armour plate, Grenade launcher, ammo/med crate, RPG, respawn beacon,...

Keybinding Tactical Gear or Gadget is for Motorized Exoskeleton, heal pistol, Sonic Drone, Detection Arrow, scan enemies, compressed air blast, ...

Keybinding Class Gadget 1 is for Triple Blaster, Smoke Screen, Sonic Trap, Volt Arrow, Flash Drone, Dynamic Propulsion, ...

Keybinding Class Gadget 2 is for Smoke Grenade, Frag Grenade, Data Knife, Magnetic Bomb, ...

[Culda]

It's for the Laserpointer. Switch it off in corner situations to not give away your position