Pirate Ship
An attacking gimmick that places a high-damage dealer like Bastion on the payload and advances it under shield and pocket heal protection.
A special bunker limited to attacking on payload maps, built on fusing the "the cart moves while you ride it" rule with the advance of the damage source. It bites especially hard on terrain the defense cannot get sightlines into (corners, covered sections), and is learned together with the answers to it — knocking the damage source down with Sleep / Hack / knockback and the like. Use it with the distinction that it is a map- and terrain-dependent gimmick, not a general-purpose comp. Post-rework OW2 Bastion is centered on Configuration: Assault, with the Artillery Ult functioning as the combo. Easiest to file as the mobile version of a bunker comp.
Terrain where the payload runs through covered sections, or a string of corners the defense struggles to get sightlines into. Lands especially hard when the enemy team has no Hack, no Sleep and no knockback available.
Sombra's Hack or Ana's Sleep knocks Bastion off the cart, leaving only the shield up and zero damage behind it. Or the defense opens a sightline from a different angle and grinds the damage source down from outside the shield.
Forward Hold
Holding a defensive formation pushed into enemy territory to disrupt their regroup.
High Ground
Elevated map position offering downward sightlines, cover, and safe retreat — the foundation of most setups.
Bunker Comp
A defensive setup that protects a high-damage dealer like Bastion behind shields and defensive cooldowns, fortifying one position.