Mahi-Mahi "Fort"

This is missing a lot of logic. First, Splat Walls are easily brought down by an enemy Splash-O-Matic, Berry Spattershot Pro, and just about any weapon with a Suction Bob. This setup is also flawed by Chargers, and the DARN DYNAMO ROLLER, due to their high range.

squid beacons aren't giant walls, nor are ink mines

Dededork is right. This is situational. No effort, no helpful info, please include helpful info in your guides to actually help the people reading.

You can just walk through enemy beakons, anyone who attacks a beakon in the enemy's side should know it's a decoy and catch on before they get punished for it.

Situational and not helpful. This would never work.

Where is the usefull information?