Well I did some testing to see if CMSF2 is acting the same as what I tested in CMBS years ago.
Before any rant, learn to see what to expect from the game and things will work out much better for you
Ok, I selected all 13 Nato Sniper units and placed them in a sniper perfect situation with a target rich field of enemy units, none of which were firing back AND NO COVER
Tested range 420 meters
allowed 2 minutes of firing
used vet+1, then crack +2, then elite +2
In all these test the average hits were around 18 units, so that is 1.4 hits approx. within two minutes. But of course I had teams ranging from 3 kills to no kills in the test.
Only on the elite +2 test did I have one unit with 4 kills.
Also there was no consistency as to which sniper unit was out performing the others.
these were some of the top performer in some of the test.
US MARINE M82A3
AT 600M IT WAS THE
DUTCH 338 LAPOA ,
AT THE 600 METER RANGE I HAD A ADVERAGE OF 7 HITS OUT OF THE 13 TEAMS IN THE 2 Minutes
so you might as well say .5 percent chance in that time frame.
take these things , now factor in cover and concealment and all the other things the game does and now you can see what to expect out of your Snipers.
plus keep in mind get them much closer and the enemy fires back.
In general, I would not let my sniper fire for more than a few minutes without changing locations and the 400 meter range is a good range to use to start getting results on easy targets.
(Side note, these numbers are good for the modern games, I recall the testing on the WWII games were about 150 meters shorter to get similar results. too long ago to remember for sure.)