There is an S/S+ Japanese team that likes to run up to 4 Splooshes with Quick Respawn and Quick Super Jump on some rotations (sometimes they'll use other weapons with Beacons).
They just keep pushing until one of them gets behind your lines, drops a spawn beacon, and all of a sudden their territories and beacons start spreading like a zombie apocalypse because they're just persistently dropping in like ODST's. It's actually VERY overwhelming once they start gaining any momentum, even if you know what they're doing. It can be even crazier on Tower Control when they just keep alternating super jump-ins to the tower too often for you to be able to actually move the tower away from your side.
Some of the better "everyone use the same weapon" teams tend to have one wildcard, which is usually a Charger in S rank Squads. Something like E-Liter + 3 Tentateks can be a strong, flexible team setup because of how much gear freedom Tentatek has. Players who stack the same weapon who are very passionate, knowledgeable, and skilled with said weapon tend to be alarmingly strong and you usually have to change your playstyle completely to deal with it.