I still can't see anything specific on the TAG site about removing all public access to this area other than warnings that mtbers **** up SSSI's etc is not doing them any favours and that they need to behave responsibly?
We've engaged constructively and they're currently happy we're working to address their concerns (e.g. the posts everywhere asking people not to disturb the exercises). We now sit on the conservation boards, help out the other conservation agencies with volunteers and try to address the army's concerns when they raise them to us.
The quid quo pro is that the army now understand a bit better what mtbers are about, and allow us to formally book in maintenance days for the trails.
I would make the point that the army wouldn't need to 'state' anything if they wanted to stop mtb access (at least to the Aldershot training areas which is the area where TAG functions). The existing byelaws are very clear that riding off the fire roads can result in a fine (£500 quid I believe - the £20 quid in the byelaws increases in line with some scale or other) and the confiscating of your bike. Any agent of MoD could do this perfectly leagally should they decide that's the way forward. TAG is working to ensure that it doesn't come to that.
EDIT: One final thing, the current byelaws are being reviewed, hopefully mtbers will now get a more favourable deal out of that.
EDIT 2: Just for clarity the MoD have never stated they will remove public access - TAG is concerened about maintaining open access to mtbers which is currently happening under grace as the byelaws state it's not allowed.