There is another way, which is sponsorship. Unit sponsors provide this stuff and that reduces the burden on the actual fighting force personnel but also gets more into opening the door for professionalism, for better or for worse, in fighting forces that function with the expectation of a logistics tail and may or may not be worth the investments by sponsors.

This is where the Hadjis go a lot with their action videos in the various jihadi actions, showing that they are on the ground and doing something in their side of any particular conflict, then contact is made through networks of sponsors who verify who is who, conceal the identities of others, and try to raise funds and sponsorship for particular groups, actions or veteran programs.

It is a time honored system put out by the nation states that had originally started out sponsoring subnational groups, both the "west" and the Communists used it. The Church used it during the Crusades and that is what gave rise to the Templar and to a later degree the Masons, who grew into several charity management organizations which in turn became business empires.

The concept remains similar though. XYZ organization declares to have taken a side in the conflict, puts boots on the ground, declaring they have boots on the ground, then engages in noteworthy action, with varying levels of verification of the action, then sends representatives around to the sympathizer population asking for contributions and tribute to support the action. The character issues come into play on how well those contributions are managed, what they accomplish and what the factions making the contributions care to accomplish, which can also be varied, misstated and ulterior. Filtering agents will work constantly to manage information and resources between sponsored people and events and the sponsors.

That of course, leads to several shortcomings, like accusations of mismanagement or theft, which definitely happen, but when the accusations vastly outpace the contributions, then you know that something has become effective and is known to be effective by the politically savvy players in the conflict.