Originally Posted by Photolysis
It depends on if the netcode has also been improved. If you slapped H2's code straight onto a dedicated server, you'd still have the problem with shots across the map not counting, because from the server's perspective you'd constantly be missing, even with small amounts of latency.
The net code probably won't be changed.
The server will decide what hits and what doesn't in older clients (h1 and h2). However at least host advantage will be gone, and the better YOUR connection to the server, the more frequently you'll land shots, rather than being reliant on peer to peer.