Template:Upgrade station building

These are available only to the Engineer.

Buildings' upgrades
Upgrade	Buildings	Cost	Level	Notes
+1 Disposable Sentry Gun	Engineer	500	1	Gives the player a disposable mini-sentry, which is built by choosing to build a sentry when the player's primary sentry already exists. This mini-sentry cannot be upgraded, repaired, resupplied, or wrangled. It is slightly smaller than the Combat Mini-Sentry from the Gunslinger and fires at the rate of normal level 1 Sentry Gun. Once it runs out of ammunition, it self-destructs. Not affected by building health upgrades.
+50% Max Metal Capacity		200	4	+50% metal to the Engineer, not the buildings.
+100% Building Health	All Buildings	400	3
+10% Sentry Firing Speed	Sentry Gun Combat Mini-Sentry Gun	350	3	10% faster sentry fire rate.
2-Way Teleporters	Teleporter	250	1	Allows players to stand on a Teleporter Exit and teleport to the Entrance in addition to the normal Entrance-to-Exit functionality. Both directions use the same charge meter. If there is a player on each end, whoever got there first will be teleported to the other side.
+100% Dispenser Range	Dispenser	100	3	Players can stand further away from the Dispenser to gain Ammo, Metal, and Health.