Think of it this way.
Start playing with an AEG and get some experience.
If you think you can take the heat of sniping, then go for it. But, as you can see, it is ill-advised.
If you think that AEGs are "bulky and unweildly", why not get a smaller one? E.g. a MP5/variant or something even smaller like a Mac/MP_?
Ares M110 LEAF - Ares Striker Tan
TM G17 Pink - KJW P226 TwoTone