Forward Operating Base

Forward Operating Base  
General  
Category Base
Hammer None (placed from its own item)
Building  
Build cost 30 Build Supplies
Shop price 7,500 cash
Build time Instant
Health 15,000 HP
Damage  
Bullets -80%
Melee -80%
Grenades +200%
Rockets +1,400%
C4 +1,250%
IEDs +5,000%
Internal name DA_Buildable_FOB, item ID_ForwardOperatingBase

The Forward Operating Base, or FOB, is the anchor for most other structures. Most structures must be placed inside its radius. It has 15,000 HP, the most of any structure in the data, and it is placed from its own item rather than a hammer. It also holds items and resources for players to use.

Overview

The FOB costs 7,500 cash in the shop, and its Build Supplies cost is 30. Its item description reads: needed to build larger structures, can hold items and resources for players to use, and provides a radius in which players can build.

Each faction has its own FOB model in the data.

Destroying an enemy FOB pays 2,500 cash and 500 Role XP, plus up to 7,500 more cash that depends on the supplies the FOB holds (the full bonus at 25,000 supplies). Hacking an enemy FOB pays 1,000 cash.

Building it

  • Cost: 7,500 cash from the shop. Its Build Supplies cost is 30, and nothing is charged at placement.
  • Hammer: None. The FOB is placed from its own item.
  • Placement: It cannot be placed within 3 m of a safe zone or while standing in one, and not within 1 m of a ladder. A new FOB also cannot be placed within about 42 m of another FOB. The exact shape of that check is not decoded.
  • Build time: Instant. The FOB has no build stages.
  • Repair and dismantle: The data gives hammer figures for the FOB: 30 hits (Small), 15 (Medium) or 10 (Large) to repair from zero health, and 100, 75 or 60 hits to dismantle your own. Whether a hammer can work on a FOB is not confirmed, so these are shown for reference only. Dismantling gives no supplies back, as far as the data shows.
  • Stack limit: 1.
  • Limits: Each FOB allows one Refuel Station, one Repair Station and up to four Builder’s Radios. See the Refuel and Repair Stations and Builder’s Radio articles.
  • Interactions: Players can use the FOB’s access interaction. A tap on keyboard or a hold on gamepad lets players use it, and several players can do so at once. Hacking takes a hold of 30 seconds by one player. The data says the hacking result is sent to the server. The rewards for hacking are on the Rewards page.

What it does

The FOB anchors the building radius. Most structures must be inside a friendly FOB radius to be placed, and the FOB limits the number of Refuel Stations, Repair Stations and Builder’s Radios. The FOB also holds supplies for players, and the data lists sounds for depositing Ammo, Build, Fuel and Mechanical Supplies.

The client game files hold no spawn data tied to the FOB, so nothing in them shows that it is a spawn point. The server side is not excluded by the data, so whether players can spawn at a FOB is not known.

Durability

The FOB has the most exposure to explosives of any structure. Its IED entry multiplies IED damage by 51, and its rocket entry multiplies rocket damage by 15.

Source Change Share of damage that gets through
Bullets -80% 20%
Melee -80% 20%
Grenades +200% 3 times
Rockets +1,400% 15 times
C4 +1,250% 13.5 times
IEDs +5,000% 51 times

The FOB’s data has a flag named “do not take damage”. No code in the game files reads it, so it appears to be unused data. The table below assumes the FOB takes damage like any other structure. Its health is 15,000, the value in its data asset, which is applied when the FOB is spawned. The table gives the hits it takes to destroy, for each source. For how the percentages combine, see the Damage Pipeline.

Hits to destroy (point blank, derived)

Derived from each source’s base damage and the damage table. It is not a count from play: each figure assumes every shot lands at point blank for full damage, with no falloff and no other rules, so real fights can differ. Base damage used: M4 5.56 mm FMJ 28, .50 cal FMJ 90, 120 mm rocket 150, M67 frag grenade 100 (it counts as a rocket against structures), C4 charge 250, IED 300. Each figure is the number of hits needed after every matching damage entry is applied.

Structure HP M4 5.56 mm FMJ .50 cal FMJ 120 mm rocket M67 frag grenade C4 charge IED
Forward Operating Base 15,000 2,679 834 5 10 5 1

Season 2 changes

The Season 2 data lists no change to the Forward Operating Base’s cost or health.

See also

Sources