What is 40k skaven?

Skaven are a race of rat-like creatures in the 40k universe that inhabit the underground tunnels and caverns of the planet called "Skavenblight." They are known for their cunning and devious nature and have a hierarchical social structure based on strength and cunning. Skaven are also known for their technological advancements, particularly in the areas of machinery and weaponry. They are often depicted as being at war with other factions in the 40k universe, including the Imperium of Man. Skaven units in 40k include infantry, artillery, and specialized units like assassins and warpfire throwers. Overall, the Skaven are a formidable opponent in any battle.