5 infantry units
GDI helipad (cut)
The craft was equipped with four turboshaft engines, giving it great stability. Its cargo hold could be used to transport personnel and light ordnance rapidly across great distances. The light construction of the vehicle and its lack of armour made it vulnerable to any kind of anti-aircraft weaponry, however.
GDI used these aircraft for the purpose of evacuating infantry from combat zones or combat rescues of civilians. Vulnerabilities limited them to operations where enemy air defenses had been neutralized.
At the beginning of the Second Tiberium War, when a Nod base behind the attack on GDI's Phoenix Base was targeted for destruction, two Orca Transports flying ahead of the GDI attack force to evacuate civilians in the area were each destroyed by a single hit from Nod SAM sites.
The Orca Transports appear in various campaign missions of Tiberian Sun, as computer-controlled units used to evacuate civilians and personnel. It is impossible to control them in the campaign, but they can be put in custom made scenarios. In this case, one way to acquire them is to use a Hijacker to gain control over one of them, or use editor scripts to give the aircraft to a player automatically.
Due to a bug involving air units, much of the original code had to be re-written in one of the early Tiberian Sun versions. Because the Orca Transport was not intended to be player controlled, Westwood Studios did not fix a new bug caused by the changes. This lead to the Orca Transport to glitch and become uncontrollable. Due to this bug, unless you are using an old version of Tiberian Sun or a modified version that fixes this, it is not recommended that you make this unit available in multiplayer.