This page is timeless and should be accurate for any version of Foxhole.
Base Upgrades are new functionalities that Bases can unlock over time at a rate determined by the amount of player activity at the base. Certain base types have multiple upgrades trees and certain Upgrades have requirements before they can be progressed. You can check a Base's upgrade progress by opening its menu or by putting your mouse over its icon on the map.
Unlocking Rate
The unlocking rate of a Base's Upgrades follows the Player Activity at that Base. Player Activity is primarily determined by the number of online players that have that base assigned as their Home or Forward Base spawn point and are in the Region.
Player Activity is also influenced by the amount of supplies in a Base. If the Base has at least 800 Salvage (or 400 Basic Materials or other amount of items of equivalent value) in its stockpile, the unlocking rate increases. The increase is roughly equal to having one additional player spawn assigned to the Base.
Player Activity is also influenced by the amount of friendly structures or structure Build Sites within the Base's garrison range (e.g. 80m for Encampment). Each one increases the unlocking rate by a little bit. The effect is maxed out after only 8 structures and is roughly equal to two additional player spawns assigned to the Base. Neutral structures such as Trenches, simple Bunker pieces, Barbed Wire, or Storage Boxes do not count. A structure's faction can be checked with a Hammer in "Upgrade Mode". Friendly world structures like Garrisoned Houses do count.
If a Base's player activity is zero then the upgrade progress halts completely.
The unlocking rate of a particular Base Upgrade at Bunker Bases can be halted if its Infrastructure Modification requirement is not met.
The visual progress of upgrades in the Base's menu updates every 5 minutes.
Upgrade Prioritization
For Bases with multiple upgrade trees, the unlocking rate is evenly split between the next available Base Upgrades of each tree. However, players that have their spawn at a particular Base can choose to prioritize one Upgrade over another by clicking on it (a green check mark appears). The Upgrade that is prioritized by the most players progresses the fastest.
Bonuses
A Base located in a Region Zone marked as "Friendly" territory rather than "Neutral/Enemy" will have an overall unlocking rate 3 times faster.
During the first 7 days (168 hours) of the war, the maximum amount of progress that player activity can generate at bases in friendly territory is raised. This bonus is indicated by an icon in the top right of their interface 
. The bonus is finite and faction-wide, it decreases as it is consumed.
Upgrades List
Base Upgrades available at Encampments.
| Image
|
Name
|
Description
|
Progress Needed
|
Unlock Time*
"Friendly" Territory
|
Unlock Time*
"Neutral/Enemy" Territory
|
"BASE" Tree 
|
|
Provisional Garrison
|
A provisional Garrison connects the base to nearby defensive structures (80m radius). Defensive structures will deactivate if player activity is too low (<10 player spawns assigned).
|
50
|
40min
|
110min
|
|
Small Garrison
|
A small Garrison permanently connects the base to nearby defensive structures (80m radius).
|
1200
|
14.5hr
|
44hr
|
|
Large Garrison
|
A large Garrison permanently connects the base to nearby defensive structures (80m radius).
|
4800
|
2.5days
|
7.5days
|
Base Upgrades available at Keeps.
| Image
|
Name
|
Description
|
Progress Needed
|
Unlock Time*
"Friendly" Territory
|
Unlock Time*
"Neutral/Enemy" Territory
|
| "BASE" Tree
|
|
|
Provisional Garrison
|
A provisional Garrison connects the base to nearby defensive structures (80m radius). Defensive structures will deactivate if player activity is too low (<10 player spawns assigned).
|
50
|
40min
|
110min
|
|
|
Small Garrison
|
A small Garrison permanently connects the base to nearby defensive structures (80m radius).
|
1200
|
14.5hr
|
44hr
|
|
|
Large Garrison
|
A large Garrison permanently connects the base to nearby defensive structures (80m radius).
|
4800
|
2.5days
|
7.5days
|
Base Upgrades available at Safe Houses.
Base Upgrades available at Town Bases.
Base Upgrades available at Relic Bases.
Base Upgrades available at Border Bases.
| Image
|
Name
|
Description
|
Progress Needed
|
Unlock Time*
"Friendly" Territory
|
Unlock Time*
"Neutral/Enemy" Territory
|
| "BASE" Tree
|
|
Provisional Garrison
|
A Provisional Garrison connects the base to nearby defensive structures (40m radius). Defensive structures will deactivate if player activity is too low (<10 player spawns assigned).
|
5
|
5min
|
15min
|
For Bunker Bases some upgrades require Infrastructure, which is provided by building Infrastructure Modifications in bunkers connected to the base by trenches or bunkers. Once the upgrades are unlocked the required infrastucture can be removed without losing the upgrade.
Once an upgrade for a specific bunker garrison is unlocked, bunkers that are connected to the bunker base via trenches or bunkers can be modified to become that specific bunker garrison type. The maximum range of the bunker upgrades is a chain of 40 connected bunker/trench pieces (distance to Bunker Base is irrelevant), i.e. the upgrade doesn't reach a bunker if the shortest connection to the bunker base is a chain of more than 40 trench/bunkers. Once a particular bunker has been modified into a bunker garrison it won't lose its modification if its connection with the bunker base is severed, it can even still have its tier upgraded.
| Image
|
Name
|
Required Infrastructure Modifications
|
Description
|
Progress Needed
|
Unlock Time*
"Friendly" Territory
|
Unlock Time*
"Neutral/Enemy" Territory
|
"Base" Tree 
|
|
|
Provisional Garrison
|
|
A Provisional Garrison connects the base to nearby defensive structures (80m radius). Defensive structures will deactivate if player activity (set spawn) is too low (<10).
|
50
|
40min
|
110min
|
|
|
Small Garrison
|
|
A small Garrison permanently connects the base to nearby defensive structures (80m radius).
Increases Garrison Activity effect on Garrison Size growth.
Required to upgrade Base to Tier 2.
|
1200
|
14.5hr
|
44hr
|
|
|
Large Garrison
|
|
A large Garrison permanently connects the base to nearby defensive structures (80m radius).
Increases Garrison Activity effect on Garrison Size growth.
Required to upgrade Base to Tier 3.
|
4800
|
2.5days
|
7.5days
|
"Garrison" Tree 
|
|
Defensive Garrisons (Tier 1)
|
4
|
Allows connected bunkers to be upgraded into Tier 1 Rifle Garrisons, Machine Gun Garrisons, AT Gun Garrisons, Artillery Garrisons.
|
50
|
40min
|
110min
|
|
Defensive Garrisons (Tier 2)
|
12
|
Allows connected bunkers to be upgraded into Tier 2 Rifle Garrisons, Machine Gun Garrisons, AT Gun Garrisons, Artillery Garrisons.
|
150
|
110min
|
5.5hr
|
|
Defensive Garrisons (Tier 3)
|
24
|
Allows connected bunkers to be upgraded into Tier 3 Rifle Garrisons, Machine Gun Garrisons, AT Gun Garrisons.
|
2210
|
26hrs
|
3.3days
|
|
Artillery Garrison (Tier 3)
|
30
|
Allows connected bunkers to be upgraded into Tier 3 Artillery Garrisons.
|
5650
|
2.8days
|
8.4days
|
"Command" Tree 
|
|
Support Bunkers (Tier 1 & Tier 2)
|
6
|
Allows Observation Bunker, Medical Room, Storage Room, Engine Room, Fire Suppression Room, Bunker Hearth, Artillery Shelter Room to be built in this network (except Tier 3).
|
10
|
10min
|
25min
|
|
Support Bunkers (Tier 3)
|
12
|
Allows Tier 3 Observation Bunker, Medical Room, Storage Room, Engine Room, Fire Suppression Room, Bunker Hearth, Artillery Shelter Room as well as Large Structure Foundations and Weather Stations to be built in this network.
|
150
|
3.3hr
|
5.5hr
|
|
Deployment Point
|
24
|
Allows players to deploy to this forward base from the Home Region.
|
4150
|
2.1days
|
6.3days
|
|
Advanced Bunker
|
40
|
Allows construction of Storm Cannon, Intelligence Center, and Underground Fortress.
|
6800
|
3.4days
|
10.4days
|
*Unlock Times listed here are approximate values and correspond to a Base's passive unlock time: zero player spawns assigned, 5+ friendly structures in range, 800+ Salvage (or equivalent value) in stockpile. Unlock times can be much shorter if many player spawns are assigned.
Gallery
Showcase of the Base Upgrades in the Devstream
