How do I get the The Dark Theft mission active if i cant find the ship Chron Shift Carriers in the first place with a Chron Shifter Part, i cant to find the ship to activate it, does it require another mission to make the ship appear with the part so i can activate the The Dark Theft mission.

the ships will show up just keep killing all the npc's that show and soon the ones you want will appear

aye, keep killing npc's.... if you're not paying 10 Galaxy Points for energy recharges, this mission can actually take several days (couple weeks, a month or two, possibly a year depending on how dedicated you aren't)

What u mean i am not dedicated!

it took me about 3 weeks to finish it. i got the pieces in about 10 days, but didnt get around to actually doing the mission for 3 weeks.