Road Dog question

So I’ve been farming him since yesterday and still haven’t gotten a redline to drop.
He wasn’t dropping anything until I popped his helmet and he became enraged.

My question is does he have to be enraged to get his legendary ro drop?

He doesn’t. He can drop no matter how you kill him. The drop rates are just kind of spotty on dedicated drops. I got a ton of them to drop when the event first kicked off, but then the drops dried up, seemingly. Its all just RNG, and not stellar dedicated drop rates