@ phreedh
I remember those from when i was little and just to watch my brother and my cousin playing
@ Bagshot
cheers mate, you input away from the forums is greatly appreciated as much as it is on

Right tutorial for building the chosen for Thorbjørn as promised
Cut along the red line, i use clippers as long as you are careful

you are then left with the following bits to make the body

if you want to make sword and shield chosen just use the swords and shields from the knights or whatever you want.
if you want to make the halberds follow on but be aware these pictures are only for reference as I haven't actualy cut these for the pictures as I am making a champ tonight I will update this when I come to make the halberdiers like those above.
cutting along the red line

you can then rotate the arm to a required position without any real problem. maybe a little greenstuffing.
for the other arm use, shave down the area outlined blue and then cut along the red and then attach a marine hand for holding bolter (the U shaped one) to the stump

result will look something like the right one in picture.......

you need to greenstuff a armour plate for the guantlet for the end result of the left one in above picture.
If you are unclear about anything mate let me know.
Right here is the work on the champion

didnt finish work till late so went running late cooked late started sculpting late so didn't get as much as I wanted done on this, but hey it looks decent enough so far.
Damien