When a Chitauran attacks a target that has already been attacked by another Chitauran this round, it takes an additional 2d6 Damage on hit. Should a Chitauran mother ship be destroyed, all chitauri connected to that hive mind lose all their hit points

There is a 1 in 4 chance that any given Chitauran will possess a flying vehicle. Which grants them a fly speed of 60 ft as a mode of travel. The vehicles don't bank well and anyone in piloting one has disadvantage on rolls to control the vehicle

Do to being alive for millions of years they have gained increased intelligence for creating advanced technology

Increased strength