I think the design of SL is less solo friendly than PL, so this build was designed specifically around keeping aggro and mitigating damage while the other team members do the damage.

If you want a solo build, I would try punk's build since it provides healing ability. This build is definitely not going to put out a ton of damage. Ideally, you would want to group up with an engineer and three operatives. While this build keeps mobs stunned a lot and reduces damage, it does require healing or stims, or lots of waiting.