It's not even watchable in a silly, grand allegorical way, like the second and third movies. It's completely flat, with little premise, no narrative or character arc, no justification for its complete brutality, and a steroid-pumped mute who sounds and looks like he's suffered a massive stroke in the main role - and even then he's part of a collective of mercenaries.

I gave it the benefit of the doubt early on, but that cockney ex-SAS guy insults just about everyone's intelligence.