New update -
V3B18a - the changes aren't big, but there are fixes for some serious bugs (one of them would cause sometimes even a crash - if You were really unlucky).
+FIXED bug with bots not planting the bomb (while debugging I saw the bot "thinks" it has mp5navy instead C4 instead in its hands, but it even haven't had mp5navy at all

).
+FIXED bug with pb_minbots not working correctly since pb_botquotamatch has been implemented.
@person135 - please test if that second fix is also solving Your problem with 20 bots or not.
During few days the fullpack will be updated, too, because these bugs were serious.