mission help in new jerusalem

[Kothyxaan]

i have just got Greyhair in my team and just left the Beta Lethera 1

the main character says "it is too early to celebrate. we better reach a station..."

i get attacked by 4 MSF ships then

greyhair says he can change the motherships id but he can only do it once but we need to land on a station first

but no matter what i do, i cant leave the system or land on a station without the mothership getting destroyed (even with NO ENEMIES in sight) because of that stupid f*cking instant death scripting

(sorry for the language but that bloody instead death scripting is really annoying the hell out of me)

how the hell do i finish this mission?
or is there some way to get rid of the afforemention cr*p scripting

ps. i hope the game designers cut this kind of scripting out of any future games

wel... dont know how i did it, but i found out this is mission 7, messed with the script and cancelled the mothership autodestruct, , but still id like to know how to complete this legitametly