Basically you have two options: A) 3ds Max with Maxlancer; B) Blender export to gltf and converting to Lanceredit;
Maxlancer is a more feature-complete solution, while blender+lanceredit is alternative option for those who can't or won't use max.
At this state there's not much left to add into maxlancer, aside from exporting character models (dfm), so it's mostly occasional fixes here and there and feature requests.
May be I'll add support to Schmackbolzen's advanced renderer at some point.
So use whatever (except Milkshape and buggy exporters there). You can model in Blender/Maya/etc and import into Max to do final assembly for export into Freelancer formats.