ent_sendnow(), something to think about. If you want to get rid of dplay_entrate(), sending every entity every blah blah percent second, consider how much you could lessen traffic by only sending when necessary with ent_sendnow(). Just a thought.
Why send an update for every entity, even when they are not moving or doing anything? Ala dplay_entrate(), when you could just send entity update when really needed? Of course, you would probably still want to send the entity updates at a rate, similar to what dplay_entrate() did, but only when an entity is actively doing something.
Yup, I really said that. Whatever it means.
Commands to consider:
Server:
entity.nosend;
ent_sendnow(entity);
Client:
send_skill();