I have created AImeshes for most of the common First Strike objects and a lot of the other objects in the mod.   If there is anyone that wants to use them to navmesh there own First Strike maps to add coop, let me know I can make them available.    But, if your interested in expanding the existing Navmeshes, be aware that I am working on the AImeshes for the custom map objects in order to more fully expand the First Strike maps.