Roflmahwafflz bringing you a tutorial on point_templates and the creation of rolling boulders. Applicable 100% to L4D2, and a little less applicable to any other source engine game. Some tutorials can be copied over in function to other source engine games verbatim, others cannot be.
If you have a tutorial request leave it in the comments below.
Steam Profile:
http://steamcommunity.com/id/Roflmahwafflz/
Download the Tutorial VMF:
https://drive.google.com/open?id=1u1I-JQpoqthHuOcva0UvSKWX_lKtkUKi
