Seems extremely slow but you just cannot die doing this strat https://drive.google.com/file/d/0B38XMNjp-HeiSHlId1NQdzZNb00/view?usp=drivesdk
Rumble doesn't need this kind of glitching, do you just get really unlucky all the time? This was this first time I did rumble in months, just kept hold of mouse click the whole time.
This wouldn't be needed ever if i knew about a strat that guarantees not getting hit. Problem with getting hit is that you have a chance of getting a long falling amimation that gives time to the guys to gang up on you. As far as i know, there was no actual strat for this mission that cannot fail. You can kill the guys one by one this way, so you can Avoid damage.
Of course you can pass this mission almost every time, the main reason i tried this is to see what happens. And what happened was this really slow but really easy pussy strat, so I shared it since maybe it can be useful in the future. Maybe some day we will do this mission with 1hp or something