Vanguard

The Vanguard is a boss in Extended Arras.

Design
The Vanguard looks like a teal arrowhead (not to be confused with the other Vanguard boss, Arrowhead) on the base. It has a block launcher in the rear. It has three frontward auto-turrets, however two appear to be "under" the Vanguard's base while the other one appears to be "on" the base.

Technical
The Vanguard is a boss that remains passive until a player enters its detection range. It can turn invisible when not moving. The Vanguard's block launcher fires blocks backwards before they swing forward.

Trivia

 * An old glitch caused the Vanguard to never attack
 * That glitch has been fixed now