Hi, I really like this list, you have some potentially lethal units and the force is very mobile. The only issues I have is that there are not many bodies which would slow you down but would provide a firebase and that the army is fairly short in range. In my experience with guard I have always had greatest success with either a static force with tons of bodies and lots of long range heavy weapons or loads of units in transports. You have gone for the mobile lots of units option but putting scions in vendettas, while sometimes useful, is risky as you lose them when they get shot down. Also that means there is less targets on the board. If possible get them transports or switch them out for an extra couple of vet squads in chimeras.
Really like it though, should be fun to play.
Really like it though, should be fun to play.