q3 movement has some fundamental differences vs classic quake/goldsrc/source physics. (much less air control, different strafe jump behavior) You would need a very good understanding of the movement source code governing q3 if you were going to use this pack as a starting point to replicate it in blueprint.
Out of the box you’re not going to get q3 movement, but a number of folks have used this as a starting point to approach that. I’ve helped a few of those folks with general questions about how things fit together but I don’t know offhand what settings they arrived at or what modifications they have made.