WOW. Wow. Wow.

I love this game, and I would say that I'm not bad at it...

But how has anyone won this mission?

SPOILER (minor if you played the first games)

Indies attack cosa. I have to defend that bomb.

How do I this? Before the bomb spawns I always snipe down one cosa ship. Then I fly around it, but there is no way i can defend it against so many ships o.o

I've tried using rem missles, straight up attacking them first, but in the end, the bomb seems to explode AT BEST 10km away from their base.

Help! How did you guys win this mission?

It's been too long for me to remember how I beat this mission, but my advice to you would be to look for guides in the internet or Let's Plays on YT.