You suggest it with all your posts Sitrep Pro for an example you don't want it to have a counter the UAV you only want one person to be able to use it rather then it supporting the team. Meaning you don't want the the entire team to know where you are but you wanna be able to hear the enemies from half way across the map. Which suggests that you don't wanna be caught off guard by someone using Cold Blooded that counters your target finder.
Not Amplify as of right now nothing counters it and it's only two points to use if you wanted players to play smart you would suggest that ALL perks have counters or you suggest that all perks have negative effects to go with the positive ones for example Lightweight users could run faster but they have less damage resistance and Blast Shield counters explosives but you move slower that would actually make people think twice before choosing or they can make it simple and all perks have counters as of right now all perks don't have negative effects and one of them does not have a counter.
There is but it will be harder to use, no large red diamonds, though the target will be lightly highlighted insight