I recently asked in the forums if there was a way to know where the chain assignments showed up and was told it was random.
Problem is, I've started a few chains, and have no idea where to find the assignments to continue them. I checked the wiki for possible locations, and I'm not sure I can read the descriptions right or if I can trust those that are there.
So once I begin a chain, is there any way to tell where I took the previous assignment (so long ago) or do I just have to keep a lookout and note it down someplace on that rare day I stumble across it. Keeping a watch for each chain seems nearly impossible...
The wiki is fairly accurate, although I'm sure there are exceptions. If you find the page for the assignment chains (just search 'assignment chains') and find the chain you're working on, then click thru to the specific mission, each one has a map towards the bottom of the page that lists the sectors the mission appears in.
Another tip, be sure to check your department heads. They have different missions. Often the one you want won't be on the 'current map' list, but your Operations Officer has it or some such. This is especially true with the colonial chains.