This build has a focus on siege damage with strengths in pushing the opponents base and it also give you good survivability with the ability to stealth in siege. Whilst the heroic ability should focus the Napalm ability you the option to trade it for the Blunt Force Gun - if you have other siege characters in your team.

Personally I would recommend that you use Napalm ability as it is also a tactical skill that can delay enemies capturing scenario objectives.

Please click this link for a demonstration of the build in a PVP Match:

https://www.youtube.com/watch?v=ZdH9WcYfplw

I hope you enjoy the video and if you have any questions or suggestion please drop me a comment.