OK, just looked at the first 15 guys on the 35.9 million inp.(posted 8762 days ago)4 3k guys drop. Gets in 5 shots before close killing the first two guys, drops two life bonuses. 1 shot, close kill 3rd guy, 30k bonus. 10 hits, ck + 30k on 4th guy. Score: 137,000
Two 500 guys show up. Two close kills + 30k, score 199,500.
3 5k guys, gets 102k for the first two, 80k for the third,and 6k for the tank. Two 3k guys, 9k for the first, 39k for the second.
3 500 guys and a 3k guy. close kills the first three, gets various items, no gems. 3 hits + 30k on 3k guy. Total score 521,500.
Maximum score, assuming 12 hits possible:
7 * 72 + 3 * 100 + 5 * 37 + 6 = 995k
Assuming 10 hits:
7 * 66 + 3 * 90 + 5 * 36 + 6 = 918k.
So I would say there are still a lot of points to be had.
Of course, getting the maximum hits takes time, but not a lot, and BBH pauses at various times to wait for an opportunity. So it's not immediate the maximum score would take longer.