MasterEffect Color+ 1.0
This is not realistic by any means!
The purpose of this is to show off how colourful ARMA 3 can be.
Effects (on by default):
Magic DOF + Matso DOF (Both are Enabled)
Lift Gamma Gain
Haarm Peter Duiker Filmic Tonemapping
How to install:
Download the .ZIP file (linked above) and open the Read Me.txt file.
It will tell you how to install it.
Screen shots were taken with the following settings-