But there is an alternative option, as it was done before: there is still an icon to launch the HD mod without the launcher. In this case, all the advantages of the WOG (hotkeys, etc.) remain, except that you can change the scale (it's really terrible to play in 2017 at 800*600).
In my opinion, two options are enough
P.S. I agree with Artem: a timer of 4000+500 is sufficient.
I would also add HL to the pool of templates instead of CM and Panic.