The angle of view most people is approximately equal to 120 degrees in the horizontal plane.
And this is without turning your head. Ridiculous, when for a better overview, you must turn the whole body!
Following this, the angles of view in the game were changed.
Basic 90 > 120
Jackal 90 > 120
Wolf 90 > 120
Buzzard 90 > 120
Predator 60 = 60
Sentinel 360 = 360
Also range of view (LoS) was increased up to 20 for all armor.
And sentinel armor received night range bonus +3.
Due to numerous requests, for fair gameplay (if it correct in relation to the invaders, far outpacing humanity in technological progress) LoS and view angle of aliens now is also 20 and 120.