is the bug still prevailing where if you get the alternative mission option before finding the assassination targets location then you can never find them?
Yes, although it's not consistent, and even without the counter-offer it may take a while to actually find the target. Took me half an hour for one of them. The only guaranteed way of not receiving the counter-offer is to assault the one giving it to you.
I've often thought about killing the twerps who offer me the alternative mission but didn't want to get Wanted.. however I might try that next time, cheers
I had one that went fine last night. My wingmate and I were docked at the same station and both accepted the same assassination mission from the bulletin board. We did not get the alternative --only the location of the target. We tracked him down and shared his bounty and both earned 158K when we turned the mission in. Pretty cool.