In Borderlands 2, Whisky Tango Foxtrot is obtained randomly from any suitable loot source but has an increased chance to drop from Chubby enemies. In Borderlands: The Pre-Sequel, It is obtained randomly from any suitable loot source.
Special Weapon Effects
On shield Situation normal... – Chance to drop an IED Booster when damaged.
On boosters ...all foxtroted up. – Spawns 3 volleys of shock grenades.
Usage & Description
Instead of spawning shield boosters like a normal booster shield, Whisky Tango Foxtrot spawns special "IED boosters" which, in turn, eject three volleys of three powerful shock charges. These shock boosters will damage enemies and the user as well. Picking up an IED booster before it has ejected all of its shock boosters will cancel the remaining volleys.
Rather than ejecting shield boosters in random directions like a normal booster shield, Whisky Tango Foxtrot will eject them towards the nearest enemy, generally, the enemy who fired the shot that spawned the IED booster. If there isn't, it will spawn in a random direction.
The use of Whisky Tango Foxtrot yields high risk to the Vault Hunter since the boosters are shock-elemental and being damaged by one can be devastating to a Vault Hunter's shield. As they are very powerful, it is readily possible for a Vault Hunter to be killed by their own shield, especially if a shock booster is spawned in a confined space. Another drawback consequence of that special effect is that it is difficult to pick up the booster immediately, as the risks tend to be higher than the potential gain, reducing the chance to recharge it while in combat. If used with caution and skill, however, the Whiskey Tango Foxtrot can double as both a decent shield and a devastating weapon against shielded foes.
Rats will be hurt or killed by the IED boosters if they pick it up.
The Whisky Tango Foxtrot may spawn with a Maliwan capacitor, granting immunity to an elemental damage type. A variant granting shock immunity (Grounded prefix) will only protect the wearer from an elemental status, but not the elemental damage itself.
The damage over time on a shock charge is the same as equal-level weapons.