I had a 2 day lan party at my friend’s house for his birthday in March. We were going to play tf2 with 16 people, but everything went to hell and after electric/lan problems and half the people leaving after a night of eating (burning hot/frozen) Totino’s pizza rolls and watching movies and farting on the ones who fell asleep XD , we decided to just play Garry’s mod because 5 people playing tf2 just dose not work. I am the only one of my friends who plays Garry’s mod regularly, so they had no idea what they were doing, but are creative and funny. It was so much fun.
If you are able to have a gmod lan party with your friends, I highly recommend it. There is no lag, regardless of anything you can run in single player.
My audio drivers were messed up, so it recorded my mic, but its better IMO because you can hear what we are saying.