MURDERWINGS

Chapter Master MURDERWINGS is an ungodly cheesy Raven Guard character that came about as of one of the newer supplements. While he's not the toughest of characters, he is essentially the Space Marine equivalent of an Eversor Assassin. He can also be considered the Killier, less tough cousin of Chapter Master Smashfucker

Warzone Damocles: Kauyon

MURDERWINGS is created when a Raven Guard Chapter Master takes the three artifacts, Swiftstrike and Murder, and Raven's Fury, A relic jump pack. This grants him 6 attacks on the charge, with a special ability called Flurry of Blows, that allows him to roll to attack again for every hit he incurs in melee. That gives him potential for up to 12 attacks on the charge, which is even far greater than the melee potential an Eversor has.

His Jump pack also costs the same as a normal jump pack, but gives him an S6 Hammer of Wrath with stikedown, so he might be able to force people to not fight him at his own initiative.

A Raven Skull of Korvaad might be good here, as it ups his WS to 7, making him hit models with WS 4 on 2+ instead of 3+, and if he dies, it buffs your units (most likely Vanguard Veterans) within 6" of him with Rage and Hatred. Enjoy shredding Marines twice as hard, even in death.

Combining this with the fact that 7th Edition made it so that chapter master's can call an orbital bombardment and still assault, MURDERWINGS has quickly built up a reputation on /tg/ as being the go-to chapter master for Soloing entire hordes of infantry. And unlike SMASHFUCKER, MURDERWINGS is actually pretty affordable for most armies, as he's clocking in at only 200 points with his full panoply. For your shooting, just use his Orbital Bombardment. Since 7th Edition added in a line for the Orbital rule that allows the Chapter Master to assault after firing it. This way you can have an S10 AP1 Large Blast as an assault weapon for your follow-up of 12 S4 AP3 Shred attacks in the charge.