I would like to play the flashpoints, but after finishing the campaign, I kinda don't see the point for me. Is there any mod that allows to start flashpoints during the campaign?
It's a really easy mod to make, so I don't know that anyone has done it as a standalone thing yet. Open the last story milestone json and find the part that sets the system use flashpoints tag. Copy that code into your modded version of some earlier milestone file. I like the one where your travel restrictions first get lifted, others wait until you get the Argo.
There is a mod.
It's called "Handy Campaign Start" and it's over on Nexus Mods. [...]
the advantage is your not editing the games base files and some convenience... [...]