Enemy Tick marks on compass

1)For the most part yes the old tick marks are gone which is very annoying I liked the old tick marks so much for both finding enemies and for finding where a friendly npc wondered off to.

2)Not really you can use the recon scope or power armor helmet upgrade to tag them so you can see where they are going and stuff but that requires having them in your sights to tag them. As for now VATS appears to be the best way to see who is near by which is a shame.