How do you play a assassing beserker?

Damage control on what? You're a retarded idiot, and the thread is fucking stupid.

...

Assuming you meant assassinating,
a) play a barbarian
b) kill people for political or theological reasons

If you want to hearken back to the Hashashin, the origin point of the term get high as balls while doing it.

Thanks.

clench, clench lethally

CLENCH YOUR ASSHOLE AS TIGHT AS YOU CAN AND SCREAM "TEXAS SMASH!"

Follow the steps of Oinkbane.

A berserk assassin is probably a disposable member of their group, and intended to make a big spectacle out of things.

You could also have the rage thing as being more of a zen trance state. In which case, you could have a Cyborg Ninja/Winter Soldier/Religious Ecstasy trance sort of assassin type.

You get the new ability to rage without making a sound by passing a DC +5 stealth check.

Take any bomb plot.

Replace the bomb with you.

Like the Eversor Assassin from 40K

Leaving aside all the twerking jokes, I think I can help float this thread.

youtube.com/watch?v=ki_Woxuzwss

This is the example you're seeking for, absolute rogues striking with silent rage, invisible and using simple weapons to fuck up heavy forces.
Bonus points because it's a real world example.