Even the first mission requires a bit of thinking if you want to complete all mission objectives even on normal difficulty, I like that. The story is crap and might as well skip all dialogue, but despite what others say, I see the RPG element in it, which is the character progression. You level up, you choose abilities (though sadly from a random set of abilities each time) and you buy (or sell) and equip items. Game gives endless retries for missions and you can even replay missions later when you're stronger if you failed to complete all the optional objectives previously.
Fun to kill it the first time. Then it just becomes annoying on later games. It appears too randomly. If you are unlucky and didn't spot it and your unit runs right in its melee range, it's 100% dead. If you are a bit luckier and encounter it at range 3, your unit is still pretty dead, because it reduces its movement by 100%. It's not that hard to kill as others mention, but it requires bringing the entire army and you'll still lose a few units. But if the army is busy fighting on the other side of the map, then I obviously won't bother. Especially because it disappears in 10 turns, so it's even hard to get there with ground units. Then it appears at a random place at a random time again. If you manage to kill it, it gives all of your units a permanent 10% feel no pain damage reduction buff. Even for units created afterwards. Anyways, I think I'll disable this DLC forever, because one time it spawned right next to my newest base while my army was away, so it was quite scary. More annoying than fun :/
I would give it 5 stars, but this version is bad :/ It took me HOURS to make this game run. Quite sad it took me this long, I even downloaded a pirated copy in my frustration to see if that ran. Of course it did, out of the box without a crack or anything. But nope, this one requires me to first set compatibility to windows XP, then delete ddraw.dll for some reason, otherwise it crashes with "Exception code: C0000005 ACCESS_VIOLATION" Alright, let's enjoy the game now, right? Well... sort of. For some reason it doesn't play that tiny little sound when I confirm a dialog. Every other sound works, but this little paper scroll sound doesn't. I would've never guessed how much I can miss such a short 0.1s long sound. It's crazy. But I want that sound back :(