I loved this, this isn't just a add on with new maps, it has new gameplays too.
You now have a new vehicle called the Goliath which is a massive tank full of guns for you to take down, which has panels that re-fills its health, so destroying it is tricky itself. Also capture the flag has a good twist, as once you capture all of the flags, the uncappable flags can now be captured, so defend is more tricky.
Another new vehicle added, are speeder bikes, which are great and nippy for getting in and out of difficult situations.
Like the review before this one, this add on is good for new medals,ribbons and unlocks. If you get a ribbon or medal instead of giving you points towards your rank, it gives you an unlock, which is a great quick way of getting the unlocks even faster.
So enjoy :)