Preliminary (Mini) Network Analysis

As per request, a more detailed post about my update rate check. 
Disclaimer: I'm not a network engineer, so grain of salt and all of that. Also, if there is an actual network guru present, feel free to correct any mistakes I made or nonsense I said.

The easiest way to determine update rates is to use Wireshark and simply monitor the network connection while in a game, so I did just that. This is the full result:




There's two different protocols present, UDP and GVSP. The latter is a streaming protocol and, I assume, used for the ingame voice chat. UDP is where game updates usually happen. Edit: As it turns out, Wireshark seems to have mislabeled the GVSP frames, so they're the game updates.

Filtered by GVSP, incoming connection:



And filtered by GVSP, outgoing connection:




Judging from the frame timing, the updates happen about every 30ms in each direction, which means an update rate of roughly 30/30.

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For the sake of it I'll leave the UDP stuff in here as a sidenote (because I thinks interesting as well). So, filtered by UDP:



Those two connections seems to be the other two players. Update rates in each direction:









So it turns out, the game exchanges things with the two other non-host players at an update rate of 2/2 as well. Another interesting thing is that my client sends its updates simultaneously but the response is usually offset by about 200ms between the two receivers. The 129.21.X.X IP is owned by a university, so this might be down to individual connection quality.