alpha infected should not be seen on the radar. The sword sometimes does not lunge while using smart-link when crosshair is red .Survivors have some advantages while the infected dont have any.These are my opinions.
Alpha infected are not even on seen on radar at all unless they use thrusters. Idk about the smart link problem.
what is smart link?
Next time you play infection check your radar
do you go maximum speed?
Infection is a good gameplay, but when I play it deducts the ratio of victories in infection only one and everyone wins.