There are some problems with how people play the game as they're used to the way things work in previous bf games.
If you're a support guy most of the time bringing a crate with you is pointless as people rarely use it, you're far better off equipping the pouches and slinging them around like crack at a crack house. Same thing applies for the medic crate, people rarely use it and it seems preferable for you to throw around medic pouches. The annoying thing it's like they don't want to go to the trouble of walking to a crate and pressing a button to use it, as it never worked that way in previous BF games, it simply had a radius around it which would automatically give out ammo\health.
I mentioned this back in the alpha as well and sure enough it's going the way i thought with very few people utilising them as the mechanic has changed from what it was previously.
Can you reload your own gun without a create ?