> More GBH than LARP, it substitutes foam weaponry for real steel and scripted acting for unpredictable scuffling This sentence confused me deeply, given it co

> More GBH than LARP, it substitutes foam weaponry for real steel and scripted acting for unpredictable scuffling This sentence confused me deeply, given it contradicts the rest of the article, until I realised they meant to say "it substitutes real steel for foam weaponry and unpredictable scuffling for scripted acting". Or, if you prefer, "it substitutes foam weaponry with real steel and scripted acting with unpredictable scuffling". You substitute new for old, and old with new (but in the latter case you may as well say "replace").