A single ultramarine lands on Yautja homeworld, near a tribes capital. The elder of the tribe sees the ship and knows it's a threat, so he sends 5 blooded yautja equiped with standard equipment to take on this new threat. The Ultramarine is equiped with his armor, chainsword, and a bolter. The Yautja has home advantage in the jungle, can they take on this space marine? Also no nukes as they would blow up their own home.
Ultra marine wins
Battle 2: A unit of 5 Terminator space marines vs 100 elder predators?