Applied in Chiang Mai. No need for an agent. Bring all docs and any shortfall they will copy for you. Was told within 4 weeks. Sent to UK passport office same day.
You won't have a problem. Really quiet airport almost everyone is transit. Walk past the first lot of electronic daft machines where where people are lined up. There's more upstairs. Can't get lost. Can't miss your flight. Cheap too. Food's edible and you get a wine and beer. Cheers.
Respect for you bravery/commitment Matt. Some wars are justifiable. There are even institutions and laws from quite some time ago. Geneva Convention, World Court etc to tell you what justifies killing. Patriotism isn't in it.