Kinda Sad
The new race the Imperial gaurd is kinda lousy to play with. They are probably the worst in any kind of situation despite what the manual tells you about them. The tanks they have are fragile the firepower the tanks have is awful even the most pwerful tank they have labled as being able to take out entire armies by itself is busted pretty quick. They literally have no deffense against Heavy units like the Squiggoth (other than pounding it with earthshaker rounds) and are horrible at fighting in melle or ranged battle.
Voice acting is somewhat cheesy as well they should have just left the voice overs for the Imperial Gaurdsmen that was used in the actual game.
Infantry is where this race fails the worst armed with lasguns the Imperial Gaurdsmen are useless even if you upgrade 4 of them with plasma rifles. They are not even good meat shields they are torn up quickly even more so in melee fights. You do get some result if you have lots of them but the Karsin Squads are at least a little better.
The ability they do have is to move between builds is a nice touch but they do not fire the qeapons they have upgraded with only the lasguns which as mentioned before are useless.
It's a good thing that this expansion adds a little to the previous races my favorite are the new additions to the space marines.
Campaign is kinda boring since you have to play as the Imperial Gaurd for the good guys but at least you do get to play as the bad guys this time around.
All in all a good expansion despite the bad flaws of the new race should still get it if you are a fan of the games as it does add some fun to the game.