War itself seems pretty unlikely on Oddworld.
Seen as though the Mudokons are at best apache-like fighters and generally don't get hold of / use guns, it seems to me like once they reach a city-like environment with mass security, they'd be done for. The only way I could see the Mudokons being able to bring a meaningful fight against the Magog Cartel is through the following occurences:
1) A mass-uprising of the entire slave caste (fairly unlikely; a few isolated cases in the history of Earth which I could give examples of).
2) Organised possession / assassination of military or government figures (but given the societal structure of the Glukkons, it seems like those underneath would be happy to try step into their shoes if it meant a promotion).
3) Pulling some mass-supernatural trickery, like they did against Molluck in Rupture Farms (we don't know the extent of this power, so it's hard to make judgement).
War between industrialists is possible, but improbable in my opinion for the following reasons:
1) The Magog Cartel run the planet through a series of businesses, which keep the economy flowing. Business takeovers are unlikely to be different to how they are on Earth; through buying stocks, etc.
2) War would be a nightmare for everyone who puts capitalism before anything else. It's extremely expensive, and a very risky venture. Even winning runs the risk of Pyrrhic victory conditions, which could result in becoming bankrupt anyway.
3) As every Glukkon can be fitted directly into a right-wing capitalist agenda, it seems unlikely that they'd possess any ideological differences with each other, which is just one less reason for fighting.
Having said this, it's unlikely that the Magog military would be able to compete with ours. If we were the aggressors, however, and they realised that without cooperating to make a defensive force and destructive technology, it would be their annihilation, I daresay they could produce some pretty astounding defences, as some of their technology we've seen is what we would describe as futuristic.
I think if they came into contact with Earth on neutral terms, they'd be more keen to find a favourable exchange rate of Moolah to USD, and seeing what they could sell to us.
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