-No clear indicator. Need to know exactly when it wears off. (Maybe even decrease the duration slightly.)
-Affects weapon rack pick ups. This causes it to become insanely broken. Either with rapid fire bazookas or super instapin with bars/mg's.
I'm okay with it suppressing multiple squads because if you get caught out you deserve it. You should know to keep cover in between you and RE squads, or use line of sight to make them waste it.