In the Mission Death Valley from the campaign, when you have to get the drone terminal from the dead guy, I had an issue:
I opened his inventory, took the terminal, and put it in my inventory + I also took the backpack.
For the backpack it worked, I managed to deploy the UAV, but I couldn't open the drone terminal. What I had to do:
-open my inventory, put the terminal on the ground
-pick it directly (with the little hand)
That way it worked...