Equip mothership with alien turrets
 

I managed to sneak out after attacking the alien sectors by going X220>X203>X297 then before the Greys attack, go back to X203 again, then go from X203>X213>X244, and finally taking the wormhole in X244 to get to a system with a dock so that I can put the alien turrets on the mothership. Now I can do a bit of freeroam with those fancy turrets, Oh yey.

is that after youve been to the precursor system? when i go there now, all i face are berserkers

it's right after precursor system, and just before Ternie gets abducted.

You sneaky bugger, I've been trying forever to get to a place to dock so I can put on those fancy green turrets, but those damn berserks keep portal camping me. Haha, good job.

Btw where's the wormhole in X244?

Edit: Almost forgot I asked this. The wormhole @ strange portal in X244 is located 4 grids in (both vertical and horizontal) from the northeast corner of the system map, above the vertical plane. The jumps aren't totally random (I think), but I can't guarantee that - when I used this one at X244 it took me to Pegasus.

To continue the storyline mission script simply re-enter X297, this time you won't have time to "back out" like you did earlier since the scene will trigger pretty much immediately after you enter.

Lol, I just cheated, I added three perks in each frimware, those alien, berserk, and prec tech inside pilots.xml.