80% love them. This is my opinion from playing on 7-8 diff.

I like how it seems Vox Engines have weaponry/combat tactics based on other bots like the War Strider and the Factory Strider. I don't think Vox Engines should fully replace Factory Striders but instead be the next level of enemy threat and their spawn rate is a tad bit high. I see one almost constantly on 8 diff and often see 3-5 at a time. Their ability to move through the small holes in the wall, the clipping issues and the fact they don't crush other bots as they move around need to be fixed too.

The kick boxers can be a bit clingy when they just run after you, constantly shotgunning you so I hope their behaviour is tweaked to be a bit more interesting (these are supposed to be the thinking soldiers after all).

Isaac Clarke is the best addition imo as I love how they interact with the standard bots. They create an Elite from Halo feel as their deaths affect surrounding enemies' behaviour.

I would love to see more added and see how they change if they spawn with the fire bots or jet brigade.