No. Install and activate on RimWorld version 1.0 or above.

https://github.com/DingoDjango/GrenadeFixRearmed/releases

Yes.

Yes.

No. The mod simply adds the "minRange" parameter to anything that has an explosive projectile. Everything else is handled by vanilla RimWorld or any combat mod you're using.

Of course! I can't guarantee I'll implement it, but I take feedback seriously. If I have time to work on a mod and implement things I take all feedback into account.

Please report it in as much detail as possible in the comments here, on the forums or on the mod's GitHub page. Also, please make sure it's related to this mod specifically.