Well most of the servers that I play use this one:
[L4D2] Points System (v1.8.0, 2016-04-11), is a forked version from McFlurry made by evilmaniac
I know there is a lot of versions in the last pages, so you may have to try it.
If i remember well there are 3 sp files
And you may need the include file too if u gonna compile, try it.