I said - and I quote myself - "head southwards" and "reach the bottom of the map". It can't be the north portal obviously because you frickin' ARRIVED through that portal. It worked for me, it worked for a whole bunch of players when I posted this at GameFAQs a long time ago, and it worked for Skyeraven. The reason you failed is because you didn't read properly.

Jumping the corporate stations before making contact or any other fruity stuff - we tried all kinds of strategies for this map - doesn't work. In fact you're quite liable to break the script. I even managed to get El to appear once and she didn't attack or even trigger any dialog, just sat there and let me blow her to pieces. The only way of finishing this map properly is to survive the corporate battles until El appears and speaks, then destroy her before she leads the the Starhammer out. Whether you stay at the middle and Rambo it out - some players have done it - or like I said, lead the Starhammer southwards because 1) it gives you a little break time between fights and 2) anything that gets the Starhammer further from the portal you came in through buys you more time.

The script has always been a weak point of the Star Wolves games even though it's also a very flexible system.