Caslon it is not that hard to understand. Have you ever been commander? If so then you would know that a commander can place a UAV, this is basically a little radar that picks up all enemy activity in the area and everyone on your team can see it. Now, what this new addition does is it places the actual UAV itself in the air. Whereas before there was nothing there, just some magical radar. With this visible UAV the enemy team can shoot it dow, and thus prematurly end your radar scan. You will then have to wait until the UAV reloads to send it out again. Now, my slow little friend, you mentioned the UAV trailer. This is a trailer located on the ground in or near your main base. This trailer is what links the UAV to the commander. If the enemy destroys it then the commander cannot place a UAV until it is repaired by an engineer or over time it repairs itself. If a UAV is in the air and the trailer is destroyed then the UAV will dissapear and so will its radar scan.
Honestly Caslon, you are perhaps the slowest person I have ever come across. Did you just figure out that EA had released BF2?
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