For anyone still a little confused by the 5v1 battle, the most simplistic breakdown I think is this (which I'm skipping the names of the other ships on, partially taken from some of the observations from the breakdown video):
Starting fleet is 5 Free Navy (2 MCRN ships with hardliners [1 heavy frigate, 1 patrol destroyer], 3 Belter ships with Drummer and mixed loyalty Belters)
Roci [corvette] is coming in to battle with low PDC ammo and fewer torpedoes, but has the most experienced combat crew. The Roci has a rail cannon, but needs to come well within torpedo distance to use it.
1o1 Roci could beat any of the five Free Navy ships aside from the Heavy Frigate.
For approach, it seems to be something like this: (B = Belter, D = Drummer, R = Roci, FNF = Free Navy Frigate, FND = Free Navy Destroyer)
... B>... FNF>
D> ... B> ...... FND> ................... <R
To open, Drummer launches several torpedoes by surprise and disables one of the two other Belter ships (the one with more Free Navy loyalists presumably). This reduces the fleet immediately to 4 (or, well, 3 since Drummer has taken her ship out of the Free Navy ranks by doing this).
Drummer then orders a stand down order to the other Belter ship (to which it complies) and fires all available torpedoes at the Patrol Destroyer.
The torpedoes spread to both sides of the target, resulting in it utilizing all PDCs in defense. While it is defending itself, Roci comes into range and disables it with two shots.
At this point now two Free Navy ships are out of commission (counting the disabled Belter ships as on), another has stood down, and Drummer controls a fourth. The Roci and the Belter ship that stood down are the only ones with any fighting capacity left.
The Roci and Heavy Frigate engage (with the Roci 'ahead' of the Frigate after a turn and burn) basically tossing every torpedo either has at the other and using some as interceptors.
The two are able to fend off the other's salvo (Roci using some cautious firing to conserve ammo), meanwhile the remaining armed Belter ships fires a crapton of Belter torpedoes at the Frigate. These are known to be not nearly as good as MCRN ones though. The sheer number and approach angles force the Frigate (like the patrol destoyer before it) to engage all PDCs in defense, with a few almost making it through. Meanwhile the Roci has cut thrust and begins to pelt the Frigate with rail shots, eventually hitting one straight down the keel taking out the reactor and destroying it.
So end result of battle is 1 Belter ship disabled, 1 Free Navy patrol destroyer disabled, Drummer's ship fully intact but out of torpedoes, Roci fully intact but out of torpedoes and probably PDC ammo.
I'm not 100% certain on the above layout (and it's a 2D representation of a 3D battle), but it's what I think the layout is based on the battle. The Roci does a flip and burn that results in the Free Navy ships effectively overtaking it.