The Arctic Rhino SMG is a projectile weapon variant used by the Infiltrator class in Tribes: Ascend. It has a slightly higher damage but a lower rate of fire than the standard Rhino SMG. This weapon is sometimes banned in competetive play.
"While designed for use in frozen conditions, the arctic rhino found popularity among Starwolf warriors when the sole survivor of the battle of Arx Koston was found by medics to be clutching it." In-Game Description.
The Arctic Rhino is a useful SMG for the Infiltrator. It allows skilled players to deal more damage with fewer bullets, enabling faster kills and better ammo conservation. Like the standard Rhino, this is a projectile weapon (not hitscan) which requires players to lead moving targets. Players who are comfortable with automatic weapons in Tribes: Ascend will find this weapon to be a useful upgrade.