Here is the Honor Guard with Grenade Launcher. Champion head, space wolves powersword(taken off a partial painted model who got moved into the Sternguard and a Lightening Claw instead), commander tabard and shoulder pad.
Grenade Launcher was made with a standard bolter. I moved the barrel up and did the side ammo feed. I then used another barrel taken out of a flamer(any cylinder of the same size will work) mounted underneath. I then cut off the normal clip and replaced it with 3 shells on band together cut from longer piece from the new scout biker.
I made sure I drilled out the two barrels to different diameters to make sure they appear different.
One more guy is pretty much done but I need to get a holstered bolter like I used on my Banner man. Anyone got a spare one. It is in the attack bike kit and actually make the bike not WYSIWYG if you use it.