1. • BUG # 1: Unable to take weapons from non-local containers
2. Player 2 (Client) drops their primary weapon on the ground
3. Player 1 (Host) puts their rifle into Offroad inventory
4. Player 2 tries to take rifle from Offroad into hands and it doesn't work

Interestingly, Player 2 will be able to take weapon if he puts it into their backpack instead of hands

1. • BUG # 2: Unable to take backpacks from non-local containers
2. Player 2 (Client) drops their backpack on the ground
3. Player 1 (Host) puts their backpack into Offroad inventory
4. Player 2 tries to take backpack from Offroad and it doesn't work

1. • BUG # 3: Uniforms and Vests share same container
2. Player 1 (Host) puts uniform into Offroad
3. Player 2 (Client) puts uniform into Offroad
4. Player 1 takes uniform back (and wears it)
5. Player 2 gets on Offroad driver, exits it (to make Offroad local and be able to take stuff from offroad)
6. Player 2 takes second inform back (and wears it)
7. Both players should observe contents of their uniforms
8. Either player should drop on ground something from their uniform
9. Other player will observe that item was removed for him as well as for player who actually dropped it showing that both players wear uniform that share same contents container

Exactly same bug happens with vests, you can repeat these steps with vest instead of uniform and both players will wear vests that share same container

1. • BUG # 4: Magazine not being removed for other clients if some player loads it directly into their gun
2. Player 2 (Client) unloads magazine from their weapon and drops it on the ground
3. Player 1 (Host) opens Offroad inventory
4. Player 1 moves magazine from uniform into Offroad inventory
5. Player 1 closes Offroad inventory
6. Player 2 opens Offroad inventory and moves magazine into their weapon magazine slot to load it
7. Player 1 opens Offroad inventory and sees that magazine is still there while Player 2 has it loaded in their weapon

1. • BUG # 5: Duping of any items\magazines\weapons\uniforms\vests\backpacks
2. Player 2 (Client) opens Offroad inventory
3. Player 1 (Host) opens Offroad inventory after Player 2 (order matters)
4. From this point, Player 1 can dupe anything in any amounts they want.

a) To dupe magazines and items player simply has to drag them into Offroad inventory and they should appear in Offroad and remain in player
b) To dupe weapons and uniform\vest\backpack player has to put it info Offroad and them drag it on the Ground tab, weapon\gear will duplicate
Additionally duped NVGs will appear with no icon for Player 2, bug is related to http://feedback.arma3.com/view.php?id=7886
Also if you try to put duped magazines and items into player inventory they will just disappear (if vehicle changes localty these objects become normal and you can take and use them)
Another note is that duping backpack causes it to unload all contents into Offroad. Also I suspect that duped uniforms\vests share same container just like described in BUG # 3

• BUG # 5: Duping of any items\magazines\weapons\uniforms\vests\backpacks

on video:
http://www.youtube.com/watch?v=7ufL2bBuSXY