When you have both in your mech its usually safest to keep ECM set to disrupt.
However people always know when your around as their targeting systems are effected, even if they can't see you.
You can stop this by switching to counter, however if your visible to any other enemy mechs you can be targeted from outside the 200meter radius as your no longer using the ECM's disrupt.
its a balance that only experience can give you as to whats best to use at any one time.
edit to get up to date from Mcgral's post
Edited by Cathy, 13 April 2015 - 02:56 PM.




















