Assault Marines on foot
I found out that the best way to filed a Razorback is to have as dedicated transport for an assault marine unit without jump packs.
Therefore I modified some Tactical Marines giving them bolter pistol and chainsword.
In particular this unit received:
On the body: Maxmini bionics arms and legs, purity seals, scrolls.
On the armour: Mk VI helmet (Space Wolves), Mk III helmet (Foreg World), bionic head Maxmini, MK V studded shoulder pad.
Weapons: standard and SW chainswords, standard bolt pistol, standard and original pre-heresy boltgun.
The models already included metal Iron Hands components plus a Mechanicum powerweapon to the sergeant.