The Power Up Canteen is a action item used in Mann vs. Machine, outside of it in normal gameplay it is a cosmetic worn on the player. Despite being a part of mann vs. machine, the power up canteen is equipped in the cosmetic part of the loadout screen, likely as there is no other reasonable slot to put it into. It is equippable on all classes, and at a Upgrade Station can fill it with "charges". The canteen can only hold 3 charges, and can be refilled at any time of the mission. One upgrade in the station for the medic lets him share canteens with the player he is healing, this can be done with anyone and the players holding the charge can be switched. The only canteen that cannot be shared is the "Return to Base" as it is a potential harbor for griefing. Canteens are activated instantly with the default key of H.
Charge Affects[]
Übercharge
Cost: 75
Affect: Gives user and sentry gun invulnerability for 5 seconds
Description: A canteen with red-colored parts and a red Ü on a shield in a red circle. Has a red-filled syringe on the left side. Has a normal cap.
Critical Hit Boost
Cost: 100
Affect: Gives user 100% chance of crits on weapons that can crit for 5 seconds. Doubles sentry firing speeds for 5 seconds. Wrangler is affected and sentry rockets are not in any way.
Description: Canteen with blue-colored parts with a ragged K (same as the 100% critical hit symbol above a robot after carrying the bomb long enough) on a gray shield on a blue circle. Has a blue cylinder on the left of the canteen. Has a blue tesla-coiled wire cap.
Ammo/Clip Reload
Cost: 25
Affect: Completely refills player's ammo, does not affect cloak or sentry guns.
Description: A canteen with a gray ammo symbol in a yellow circle. Has heavy minigun bullets attached to both sides which are large and yellow-orange colored. Has a normal cap.
Return to Base
Cost: 10
Affect: Instantly teleports the player to spawn with a 5 second speed boost similar to the Disciplinary Action's speed boost. Cannot be shared from medics.
Description: A canteen with a black generic house with a chimney in a yellow circle. On the pocket on the left side it has a extra red wire running from it to the top of the canteen. Has a small pole on top of the cap.
Buildings Upgrade
Cost: 50
Affect: Instantly upgrades all existing buildings to level three if they can be upgraded and repairs them completely under a second. Only purchasable by the engineer.
Description: A canteen with a gray generic wrench in a orange circle. Has a large wrench hanging down from the left side. Normal top cap.