I'm brand new to il-2, but I'm not worried about my pc running it. It is brand new and can run all modern games on low/med settings. However, I was under the impression that tweaking the file could only do so much, so modders developed these mods which enhanced to visuals and sfz in il-2 because its old. For example, dark blue world helps the water and what not? Am I correct? If not, what do these mods do and do I need them?