Infantry Weapon

From The StarCraft 2 Wiki

Infantry Weapons is an upgrade that is available for the Terrans that enhances the damage output of all infantry units that are recruited from the Barracks. It is researched from the Engineering Bay and, like all weapon and armor upgrades, it has a research time that is noticeably longer than the units build duration.

Contents 1 Starcraft II 1.1 Costs 1.2 Affected Units 2 StarCraft I 2.1 Costs 2.2 Affected Units

[edit] Starcraft II

[edit] Costs

The research time for each weapon upgrade has been reduced considerably since StarCraft I.

Upgrade Level	Mineral Cost	Gas Cost	Research Time
Level 1	100	100	140
Level 2	175	175	170
Level 3	250	250	200

[edit] Affected Units

The Terrans in StarCraft II have four active units and one canceled unit that are constructed from the Barracks. Only the four active units have an attack:

StarCraft II Unit	Ground Bonus *	Air Bonus *
Marine	+1	+1
Marauder	+1	-
Ghost	??	??
Reaper	+1	-

* The attack bonus is accumulative per each upgrade level.

[edit] StarCraft I

[edit] Costs

Each weapon upgrade from the Engineering Bay costs an extra 75 , 75 and 32 , and a max level of 3 in the open multiplayer.

Upgrade Level	Mineral Cost	Gas Cost	Research Time	Icon
Level 1	100	100	266
Level 2	175	175	298
Level 3	250	250	330

[edit] Affected Units

The current StarCraft I units that receive a benefit from the Infantry Weapon upgrades include:

StarCraft I Unit	Ground Bonus *	Air Bonus *
Marine	+1	+1
Firebat	+2	-
Ghost	+1	+1

* The attack bonus is accumulative per each upgrade level.