For those seeking the Holy Grail or intent on finding shrubbery there's only one quest, that of eating, drinking and talking flying! May the enemy beware the Knights are on their tail.
Bombers
Where bombs rain down from above like hail and the enemy cowers in fear and every third bomb is an empty beer can...
Fighters
When the plane you're pursuing is lined up between your sights and the beer can, squeeze the trigger!