I primarily play Team Fortress 2 either on TFF server #2, which is where most of my TF2 time is spent, or on servers playing CTF.
Occasionally in TF2 when there is a special event going on, such as the Pyromania update, I will accept crates from players and split the unbox with them 50/50. There are some rules in place for this unbox.
1. I need to be given at least 2 crates, you will recieve 1 unbox for every 2 crates. (2 or 3 boxes get you 1 item, 4 or 5 get you 2 items)
2. I get any unusuals I unbox.
3. Incertain cases, if I am looking for a specific items in the crates and I unbox one, I might give you an extra item.
4. Unless another arrangement is made, I will get the choice of first item. Then we will take turns choosing items.
5. I reserve the right to substitute an item obtained from previous unbox in the same series for a recent unbox.