No. I played a server once with these rules. No. These medic rules are aids. On that server I got in a firefight and the medic ran in between us, he got shot, reported, and me and the other guy got banned. Shit rules for shit servers.
I figured it out. Go to settings, devices, mouse, additional mouse options, pointer options, then at the bottom it says "show location of pointer when I press the CTRL key". Toggle that