You have an account on AiGameDev.com, but it looks like you have not yet signed up as an INSIDER (free). It’s a one click process, see below:

Insider Teaser
InteractionTutorial.medium

Effective Cover Selection Design using Interactive Editing

Alex J. Champandard on October 20, 2011

Position picking and cover selection can be one of the trickiest problems of modern action/combat games. There are many design and technical solutions to this, but one of the most important things to get right is the workflow. In this video tutorial you'll learn how interactive tools can help reduce your turn-around time in tuning a cover selection algorithm.