Recs.
Updated
SpecsUpdate
Pros
Pro Has Operator mod
There is a mod that does place realism high in priority called Operator. It returns the realism decisions of Insurgency from alpha, and improves the tactical realism greatly. The realism is still limited by the core game mechanics however (eg: hitscan rather than bullet physics)
Cons
Con Realism lacks in many areas
While it is a game, and early on in the alpha there was a serious effort for realism (at least withing the limits of the core game mechanics; eg simple hitboxes and damage multipliers, no bullet physics only hitscan, no wounding), the game's design as since massively compromised those earlier realistic design decisions to make the game more accessible catering more to the more casual gamer (eg while body armor in the alpha was fairly realistic, it has since been nerfed and is now not very realistic at all). The weapon handling does feel satisfying. The gameplay is largely run and gun due to a lack of movement penalty to accuracy.