WARHAMMER III Total War : Exalted Plagubearers of Nurgle VS Aspiring Champions 

That was a really cinematic final kill there. Fist pumping the air and finishing off the remaining enemy

Something to note is that i'm assuming this is base champions with no research, in campaign as chaos forces they tend to be significantly stronger due to all the research related buffs you can give them

Start them further apart, the plaguebearers could have 1 more volley. I saw this in other videos where ranged units are not given their full range advantage.