40K Orks are a bit insulting to the Orcish race in general, I like to think of them as Gauls, Barbaric Marauders to the Romans(Space Marines), but family men and leaders to their own people.
Also, the Bloodcurdlers are not as 'buff' as most Orks appear to be, leaner and more agile, they rely on their master smiths to create long lasting armor for them.
The Bloodcurdlers are known for stealing tech from the space marines, which has lead to many intricate designs and vehicles.
Bloodcurdlers Armies are as followed
Every Bloodcurdler soldier is armed with a greatsword on his back for backup if their primary breaks.
Grunts:Front line infantry armed with highly modified "Shootaz" (think Famas) and grenades.
Marksmen:Armed with high caliber rifles that have been made from scratch using Eldar tech, these men are often seen far back away from frontlines picking off enemies, often hidden in the forests around tribal townships as guards
Heavies:Armed with a hellish weapon some call the demon child of space marine and necron tech, these men are the shock troopers of the BloodCurdler army, they have a pistol as backup.
Riders:Mounted atop high powered speed bikes these men have rather small guns with high rates of fire, their main strategy is hit and run, the bikes have spikes on the front for charging enemies.
Heavy Riders:Mounted atop slightly slower speed bikes, these men carry higher caliber guns than the regular riders, the spikes on the front of the bikes have been replaced with two turrets with bayonets on the end for emergencies.
Bombardiers:Using "mortar" like weapons these men are posted throughout Bloodcurdler territory with the Marksmen, they can barrage an area quite effectively and sort of accurately.
Flamers:Using rigged space marine flamethrower tech these men are what you would expect from the Imperiums flamethrowers, only Orks.
Bodyguard:Accompanying the Warchief into battle are his personal bodyguard, armed with extremely high caliber assault rifles and larger than normal greatswords, these men are the elite of the Bloodcurdlers.