Just wanted to share- I spent many hours trying to figure out an overlay plugin with ts that works with different version of ts (and all games/sims) and I can confirm I just successfully installed the Project Kryptonite teamspeak overlay software - https://projectkryptonite.com/ works with the latest version of ts (3.0.16) and v 3.0.13 also and probably works others too (that run with the api version 19 or 20 at least) and works across all games/sims tested so far including COD- did notice a slight frame rate drop but not enough to affect game playability and can always be turned off if not working for you- their site is no longer supported and does warn against being permannetly banned from servers as tehre is arisk with overlay plugins being mistakenly identified as 'cheats' but hope this does not affect me..