Here is a handy article from the excellent The Reptile House airsoft/milsim blog which covers 2016+ Ranger loadouts:
This sort of illustrates why/how modern military 1:6 has thinned out a bit, I think. The rise in pricing becomes a factor, when both companies and bashers decide to follow the pace of evolution. Historical enthusiasts find themselves cultivating a great deal of detail, but the tempo of development and fielding of arms and equipment since 2001, is at times, overwhelming.
Still, whether or not one decides to continue with 1:6, the resources and references like this one are worth collecting. Honestly, I will say that my reading and collecting of historical material was the “gateway” to figures, in many scales.