Does anyone know a website I can look up a template for a 4187 deletion of orders and extension of deros for 60 days ?

Actually, that’s not going to work out if you’re OCONUS. Your branch is not going to just delete your assignment and extend your DEROS for no reason. They are required to place you on assignment as you approach your DEROS

There’s no template. Just put what you request and why.

Something is failing this Soldier right here. I am assuming this is your BN S1 if you are active doesn't know how to do this? If not they should be able to go to BDE and find out the answer. I would have your FLL talk to your PLT SGT get to the bottom of this. I would give you an example, but I myself would have to ask my highers if they have done one. Which, I will not hesitate to do if I don't know the answer. Have you talked to your First Line Leader?