100 Humans vs Multiple Bosses – Who Can Reach D-Rex?

I wanted to test how different human units would do against a series of dinosaur bosses. For each round, I send in 100 units of the same type. There are ancient warriors, modern fighters and a bunch of other human units to try. They have to fight their way through the bosses along the bridge. Some groups might get past the first few, while others could lose most of their team early. The last boss is D-Rex. I want to see which group of 100 can actually make it that far.