Julian Amici is a highly trained mercenary with some enhancement provided by a Heretek in my game, he leads 4 men (Killsquad trooper quality with guard armor and decent las weaponry [minerva-aegis and Mark IV], with mono melee weapons). He and his men hire out as bodyguards, assassins and armed couriers. They will typically work together as a well oiled fireteam.

Julian Amici

WS 45 BS 45 S 42 T 40 AG 50 INT 35 PER 35 WP 40 FEL 35

Skills: Dodge +10, Awareness, Charm, Barter, Command, Intimidate, Chem use +10, common lore (imperium, war, underworld)

Talents: All relevant Weapons Training (Las, melee up to chain), Sidestep, Swift attack, furious Assault, mighty shot, crushing blow, quick draw, rapid reload, peer (underworld and military).

equipment: Guard Flak armor, D'laku Hellgun, Fury laspistol, chainsword, 6 chargepacks (3 for each weapon), Injector rig with 2 ghostfire pollen extract, slam, 3 stimm and 3 detox. 200 thrones.

My group just broke 2K xp, is this to hard for them, just right? a little weak? (The Assassin uses a hunting rifle with Red dot sight and 41 BS as his typical attack but he's the most tricked out offensively).

If you need feedback on the assumed "hardness" of these figures as opponents, you should think about the circumstances of the occuring combat as well.

How will they meet in battle? Will the pc know about the group and lay an ambush for them? Or the other way around? What will be the battleground like? Open grounds or close combat in some hive tunnels/imperial city alley/void ship corridors ?

What is the rest of your pc group made up? Psykers can make a difference with one flash bang (if the pc group is 50m away from the attackers).