Regarded as foundational units, marines compose the bulk of most terran front-line forces, ranging from officially government-sanctioned units, local militias, and private security firms, to pirates, renegades and mercenaries. Koprulu sector marines are generally equipped with powered armor suits and rapid-fire C-14 rifles. The suit provides full life-support and NBC protection, allowing marines to deploy into environments that would otherwise be inimical to human life. Massed marines form a flexible and highly effective fighting force for both offensive and defensive operations against both ground and air targets.
Despite such material investment into each marine, they tend to have extremely short combat lives. To improve their effectiveness and odds of survival, many marines make heavy use of stimpacks.
A significant proportion of the Confederate Marine Corps was manned by "culturally challenged" individuals who had undergone neural resocialization via brain surgery, implants such as aggression inhibitors, and resocialization tanks. Counseling and drug therapy were also used to help overcome criminal and/or anti-social tendencies. Despite this source of manpower, it was not always sufficient to replace battlefield losses, and instances of law-abiding persons being conscripted and subjected to "resoc" were not unknown. In any case, volunteers were few.
Some marines had barcodes tattooed or branded onto their foreheads.
The fall of the Confederacy and its replacement by the Dominion (the Confederate Marine Corps being replaced by the Dominion Marine Corps respectively) has seen an increase in volunteer recruitment, but not enough to supplant "resoc" conscription. Marines continue to use variants of the C-14 rifle many years after the Brood War, along with the inclusion of M98 ballistic alloy combat shields in their arsenal. At some point, the slugthrower was replaced by the more powerful flak pistol. After the Brood War, the Dominion developed a modified Quantradyne APOD-33 dropship, the medivac dropship, to increase the survivability of medics and keep marines in the field longer. The success of the medivac design led to their adoption by the other Koprulu terran factions, though medics are still fielded due to the medivac being expensive to deploy.
Dominion marines continued to be the first line of defense to the terran nations and groups of the sector well after the End War. During the reign of EmperorValerian Mengsk, the practice of resocialization was outlaws among the Dominion Marine Corps. Marines at the time were known to also make use of the CMC-400 powered combat suit.
UED marines, also known as "smiths", are equipped much to the same standards as their colonial counterparts. Instead of the C-14 gauss rifle, they are equipped with the C-141 AC Gauss Rifle, the C-150 Ronin pistol serving as a sidearm. The UED included organic combat medics in tactical marine units. The improved survivability of UED marines inspired Koprulu terran forces to adopt medics in a similar fashion.
Many changes were made to units and structures throughout the StarCraftalpha and beta and the marine was no exception. In the early beta, marines were known as marauders. By mid-beta, the title of the marauder had changed to Terran Space Marine mk 2, possibly as a reference to (or derived from) the Space Marines of Games Workshop's Warhammer 40K series.
The term marauder was resurrected for a StarCraft II unit.
This article or section contains information about StarCraft: Ghost, which has been declared non-canon. Elements may be taken as 'flavor lore' however. The content may be significantly out of date. Please do not add speculation to this article, and remember to cite a published source for details.
↑ 4.04.1Medic. Blizzard Entertainment. Accessed 2007-09-03. "While expendable, the massive losses of terran Marines during the Great War began to become cost prohibitive. The Medic's use of chemical modifiers has greatly enhanced the survival rate of UED forces, lengthening the expected battlefield life expectancy to over nine seconds."