UNSC Battle Group Sierra-3 Active Status Country Allegiance Branch Type Role Size Part of Garrison Nickname Patron Motto Colors March Mascot Anniversaries Equipment Battles Decorations Battle honors Commanders Notable [Source] • [Talk] UNSC Battle Group Sierra-3 was a Battle Group that fought in the Battle of 18 Scorpii that spurred Vice Admiral Preston Cole to seek out the Covenant at Psi Seprentis leading up to the Admiral's last stand. At 18 Scorpii the battle group engaged a Covenant destroyer, themselves nearly destroyed, when a hitherto unknown group of independents lead by the Bellicose helped to destroy the Covenant ship and proceeded to quickly jump back into Slip Space. The captain of the battle group noted he didn