How do i create a map that reflects to both sides of a model (like blizzard mappings)

now i have a symmetrical model and i just want to map half of it. Do i just delete half, map and then mirror it?

I really need to know this so im gonna give this the old bumpzors

exactly what you said, delete half, unwrap, mirror and weld.

it seems crazy i know, but tis the way :D