balancing is a bich

the flaw with the current solution:
nanovision is USELESS now, infact it does exactly the opposite of what crytek wanted to achive: snipers now benefit from the nanovision, not by using it but by anyone else not being able to use it against them.
the most simple obvious solution is the one OP offered, make it drain energy FAST, that also gives the visor perk abit more reason to be used.
after playing sometime with the new nanovision I gotta say I was wrong (except for cloaksnipers, who still gain a slight advantage from it)
It works just well enough to find the guy you just heard but can't see, or find the guy you see on your radar but not on the actual map etc.