I like the scenario with Stalker, although it'd be nice to simplify it. Are Stalker's sightings new placements really needed when one of them is placed next to a random fighter anyway?
Not a fan of scenario with hivers, since it heavily promotes deathmatching as you make all remaining neutrals loyal on 3+. As long as enemy does not sway too many hivers, you could focus on killing the enemy rather than doing the objective.