The idea is to get a small suppression meter above or below the unit's health bar, I envision it filling up in yellow then flashing red or whatever when pinned. I know nothing about making the video games but I imagine it couldn't be that difficult to implement. IMO it would remove some of the guesswork from dealing with suppression platforms. Attached is a super high quality MS paint markup I did 6 years ago.
![](https://i.imgur.com/MwvbA9X.jpeg)