Karen Penn with a Sniper Rifle.
A sniper rifle was a man-portable, high precision, shoulder-fired rifle designed to ensure more accurate shooting at longer ranges than other small arms. A typical sniper rifle was built for high levels of accuracy and fitted with a telescopic sight. During the Liberation of Karbarra sniper rifles among other weapons were used in battle against the Invid (Robotech II: The Sentinels: " Over Their Heads")