About 10-25. Pretty hard to count them because they move all the time. But just finished the Operation: Anchorage DLC, counted them to about 13 there and 3 more outside. But they`ll all turn hostile if you arent fast enough when you have completed the DLC,
Grab that gear you need (Just dont grab the Winterized T51B power armor) And get out of there within 1.5 minutes.
Sorry off-topic O_o and spoiler.
plenty to kill instead of getting all that scrap metal lmao