They also get their score is recorded as 0, and their opponents have the match recorded as a win. That isn’t actually in the manual, but it’s in Tournament Manager which makes it official.
Lots of disqualifications are on the basis of a game action being “match affecting” (not all disqualifications of course, just the ones for rules where the words “match affecting” are used). What exactly “match affecting” means also isn’t in the manual, but there are many Q+A threads going back to Toss Up that say that the deciding factor is whether the action changed the outcome of the match (i.e. changed who won/ lost/ tied the match).
I want to know what would happen in the following scenario: The higher scoring alliance did something illegal, and it was match affecting because if they hadn’t done it the other alliance would have scored higher. However, the other alliance also did something illegal, and if they also hadn’t done that illegal thing then their reduced score would be lower than the higher scoring alliance’s reduced score.
An example: The autonomous bonus is not awarded. Red scores 7 green balls in their low goal. Blue scores 6 green balls in theirs. Red removes 5 green balls from Blue’s low goal, and Blue removes 5 green balls from Red’s.
Red scored higher (2-1). If neither team had broken the rules, Red still would have scored higher (7-6). Should both alliances be disqualified, or should neither alliance be disqualified?