So, our Black Crusade group is composed out of two chaos marines, both combat-oriented, one Forsaken, one Chosen. The Chosen also had a jumppack, and has used it to bust through thin walls to charge at enemies multiple times.
We also have two apostates, one fascinated by chain weaponry, the second being a generic Slaaneshi talker dude. We also had a renegade, an infamous Nurglite dude with a terrible decision making skills and a metric ton of missiles and demopacks.
And then there was me, the heretek with a servoarm.
During the last session, we had just finished fighting off a horde of cultists enraged at us for some reason. Now, the fighting caused a lot of commotion, and a nearby Slaaneshi biker dude drove to our location to check what the fuck was going on. Since we had just fought off a bunch of cultists, we were rather jumpy and ready to shoot at anything moving near us, including the biker.
As the bike rolled close, the biker wanted to know what the fuck we were doing here and who the fuck we were (at the moment, the Nurglite wasn't completely aware of what was happening). Meanwhile, us, the rest of the group, raised our weapons at the bike, with an exception of me, the heretek, who just calmly admired the bike which our GM described to me as a masterwork of mechanics, while explaining that it had a bunch of hidden powerblades barely visible, after I passed a few lore and awareness rolls.
After a short exchange of words, our Nurglite renegade wakes up and decides that it is a fucking GREAT IDEA to shoot a frag missile at the biker who clearly wasn't going to cause much trouble. Now, he gloriously misses as the biker starts revving up his bike, readying to launch it at massive speeds towards the Nurglite. As the missile whooshes by my faceplate (as I was standing in front of the group, and the Nurglite almost directly behind me), I realize that the bike would most likely flatten me as well as the Nurglite behind me, so I roll to grapple the Nurglite with my servoarm.
For those who don't play BC, the servoarm uses your normal WS but instead of your normal Str, it uses 75Str, Unnatural Strength 7. Grapple checks are opposed strenght checks after resolving the hit (Nurglite had 21 Ag so he failed his dodge roll), and with 75 Str.
For optimal reading of the following events, it would be best if you started listening to the media file below.
Nurglite throws terribly on his Str roll, leaving me with 12 (holy shit so many) Degrees of Success on grapple, choosing to throw the Nurglite.
And what was I going to throw him at? I fucking threw him at the now-speeding slaaneshi attack bike (which by now had all of the hidden powerblades fully extended and spinning), at hilariously high speed as the throw would end up throwing him 12 meters. The bike flattens him, dealing enough damage to barely drop the Nurglite to crits, and the GM decides that he's going to roll Operate to see if the Biker gets thrown off-course.
He rolls a 4 on a (rolls of 1-5 on d100 are commonly houseruled as critical successes), RAMPING OFF OF THE FAT NURGLITE FUCK, DOING A GLORIOUS BACKFLIP. At this point, we find out that the Chosen marine decided that it would be quite annoying if he would have to find a new heretek to take care of his weapons, so he decides to jump-pack at the now-backflipping bike. He rolls terribly, and flies straight at the powerblades, taking a bunch of damage and bouncing off of the bike at full speed as his jumppack was completely out of control. He does land relatively safely, though he did hit a tree on the way. Power armour saves lives, kids.
With the jumping marine hitting the Biker, he flies off course, and DM rolls another great roll on Operate, causing the Biker to land safely and fucking neatly on the ground.
The Forsaken marine was really fucking impressed by the Slaaneshi dude's trick, being a biker himself as well.
We ended the session there, agreeing that he is a fucking badass biker, and the Nurglite was a massive dick for trying to break his bike.
Media file is for the story above, in case you skipped the story.