I have a glimmer of an idea on how the Warrior's Guild could tie in to the Neighbourhoods. For instance, Scathach's War School, located on the Isle of Skye Hood -- see the Scathach's War School thread in Dunscaith-Skye, in Pictland -- hosted the Beltane Warrior's Triple Challenge this year.

The Warrior's Guild could have several locations throughout the Hoods (not necessarily war schools), which could host the warrior-related events during Celtia's feasts and provide central places for all members to visit for information and roleplay the rest of the time.

The information I refer to could take the shape of historical threads specific to the Warrior's Guild. This sub-thread could be called "Resources" or some such thing.

In order to avoid the creation of too many separate threads, all related threads could fall under the main "Warrior's Guild" thread in each location.

Resources could include articles written by members and links to sites that discuss such things as ancient Celtic arms and armour, their appearance, modes of transportation, codes, orders and so forth.