FFmod Reduced Friendly Fire
This mod just increases the area in which the ranged units decide if there is a friendly near their target or not. It’s still not perfect but the balance between the ration of FF kills you have is much smaller than the penalty for not shooting at the enemy in fear of friendly casualties.
In vanilla especially Javelins or throwing axes are just team killer weapons. With this they work just fine.
Here is a stricter version of my FFmod for anyone who likes their unit even more careful where they shoot:
http://steamcommunity.com/sharedfiles/filedetails/?id=473200210 (only activate one of the 2 mods at the time)