Normally, defeating the Arkship ends the tournament.

How did you defeat the Arkship?

I don't remember the names of all ships, i just wiped all enemy ships, i wanted to land on planets but it seems planets cannot be taken by armiers.

The planets are supposed to be bombarded to disable them.
How did you kill the enemy ships then,did you use any mod-specific thing or just killed them with enough ships?

Looks like somebody suffered Arkship death via overflow. Try running "event sofe_crisis.501" in the console.

I'm already on another save, but thanks for all responses. There's a chance i wanted to see "what happens next" and console "own"ed some enemy ships to kill everything to get following events. And broke the game because of it :)

Anyways, yesterday i saw that the main capital planet is landable so i've invaded it and won the SOFA event.