It can't beat the Worms series at its own game style, but Hogs of War manages to be fun regardless.
Hogs of War does have one thing going for it- it has an actual storyline supporting the war between several nations of pigs. These nations are fighting for the islands of Saustrilasia (however you spell it...). So you have to chose which nation to lead to war. It really doesn't matter which nation you chose- the only difference between all of them is outfit color and the voicing of your pigs.
Whatever the case, the storyline ends there, of course. What would you expect from a game like this? Anyway, the single-player campaign starts out surprisingly strong with some interesting missions and good variety in weapons as you promote your pigs up different career paths. You can have heavy weapons specialists, medics, spies, and eventually much later on champions. Things get rather dry quickly though, since promotions become rarer and rarer the further you go, and less interesting to boot. So you'll find it hard to get through the campiagn not just because of difficulty (though odds tip against you very quickly in the campaign), but because of boredom.
Thankfully, hogs of war benefits from a strong skirmish mode. There's a variety of pre-made maps available. You can also randomly generate maps, which gives the skirmish mode quite a bit of longetivity. Especially when you have friends to play with. If you don't have friends to play with, you can also play with the sometimes confounded, but ultimately adaquate AI. The AI in Hogs of war is not nearly as good as the AI in certain Worms games such as Worms Armaggedon however. The AI will sometimes get confused and do boneheaded acts, either killing its own pigs, completely missing its target, or doing absolutely nothing until its time-limit runs out.
Graphically, I'll keep it short- Hogs of War is ugly. The pigs themselves look fine with some decent animations, but the environments are extremely bland, and buildings are blocky. The explosions are also adequate however. The sound here however, is where hogs of war excells. The pigs benefit from great voice acting and extremely witty dialogue, easily rivaling, if not surpassing much of the witiness of the Worms games. The other parts of sound don't stand out as much as the voice-acting, but are all decent.
Ultimately, Hogs of War is a decent attempt at 3d Worms-esque gameplay that doesn't surpass worms since there's not enough variety to be seen with the arsenal. Its single-player campaign is not worth playing through, but the skirmish mode alone makes this game worth a look.
Pros: Excellent skirmish mode. Sometimes dumb, but acceptable AI. Hilarious voice acting.
Cons: Terrible single-player campaign that gets very repetitive very quickly, and can get very frusterating if you push yourself through it. Ugly graphics. Not enough variety in the arsenal.