I have to get 2 kills to complete an assigment on BF3. But the problem part is, whenever I start to use mortar, I get shown on the map with mortar icon (pretty normal) but I would like to move mortar after I have the shot, so I wont be a clear target.

Most of the times, another mortar guy kills me with mortar because he sees my location, but at killcam I see him with a gun (not mortar) and running around. So it means there must be a way to quit mortar screen and continue running around like nothing happened.

So how can I do it?