Complex sentence: Marlow reluctantly leads the two groups to the Forbidden Zone, a forgotten battleground between Kong's ancestors and the Skullcrawlers, where the same Skullcrawler that devoured Chapman attacks the group, killing Randa and massacring many soldiers before dying in a flammable gas explosion triggered by Weaver.
Split into simpler sentences: Marlow reluctantly leads the two groups to the Forbidden Zone, a forgotten battleground between Kong's ancestors and the Skullcrawlers. There, the same Skullcrawler that devoured Chapman attacks the group, killing Randa and massacring many soldiers before dying in a flammable gas explosion triggered by Weaver.