Here i will explain it more in-depth on the DOta2 system. I will then try to apply it to COH2
The game has a 1:30 timer for people to load into the game. If someone does not load into the game within that time, the player is dropped, and everyone enters into the matchmaking queue again.
If a player disconnects, leaves the game or goes afk for 5 minutes, the game becomes safe to leave. You will get a loss or win, but not the penalty for leaving
(in COH2 case, you will not get a trust rating decrease)
If a player leaves the game, or disconnects, and doesn't come back before someone's champion is killed, the game is safe to leave AND the winning and losing team will not get a win or loss. respectively.
In Coh2, this could mean if the player doesn't come back before the first squad member is wiped, then the game is safe to leave AND no one will get a win or loss. Could also be set to a certain damage reached, since squad member getting killed is kinda random.
The obvious differences between COH@ and DOta2 is:
1. If you disconnect from COH2, there is no way to come back, unless you are still in game and there is the "attempting to reconnect text" on the left side of the screen.
2. It is possible to reconnect in Dota2
3. There is a heavy penalty for being the first one to leave a game in DOta2, or going afk/disconnecting for over 5 minutes. You will be placed in the "low priority" queue which basically means the place toxic players end up. You will placed in this queue for 24 hrs, it will also take longer to find a game.
4. the only penalty afaik in COH2 is your trust rating. This determines if you "win" or "lose" during sync-errors, although there are reports of people getting losses no matter how good their trust rating is.
So you get matched vs a good team and one of you "afk" or "/leave" when the other one can "safely" leave. This spells abuse 
.
One person would have to leave the game or be afk for 5 minutes for it to be safe to leave. THe penalties for leaving the game in Dota2 are pretty harsh, especially if you are a dedicated gamer and wanna crank out some games. In order for it to be effective in COH2, the penalties for leaving need to be increased. Right now there is basically no penalty for being the first one to leave the game.
What I can suggest is if someone drops during loading or first minute of the match then the game will pause for about 1-2 min. Which will then notify the players that is searching for a 4th player. So someone who is searching for a 2v2 as axis/allies can be placed in that game and people can resume. IF no one was found in that period then AI will be placed.
DOta2 leaver system has what you are looking for. The game has a timer that waits for everyone to load in. Once 1:30 has passed, whoever that hasn't loaded in will be dropped, and all players will be sent back to the matchmaking queue.
Relic Entertainment
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