Hi there,
Militaryphotos is your safest bet when it comes to updated photos as mentioned above. Commandos in Greece more or less use what they are issued. They don't belong to the category "They are SF they can wear whatever they want...". They might be able to usesome pieces of gear that they privately purchase, but it's mostly NCOs and COs who are free to do so.
Tactical nylon wise, they use the TLBV in Grrek Lizzard pattern with a LC belt on which they carry pouches which resemble the PLCE canteena and GP ones. For those pouches, Pentagon is the way to go. Some of them used the Swedish vests, but there is no way you can find them in the market...
Regards, Vaszi bacsi.