According to Barney, Weston illustrated Scavenger of Souls and G.I. Blue for the Prog, and then Enfleshlings, Decoys, Shock Tactics and Hill 392 for other publications. Two of those were apparently reprinted in the Meg (291 and 293). Of course, that’s not to say there won’t be a bunch of other creators in this book.
(I did wonder whether Gordon Rennie being listed might mean Hunted is in the book, but Mark Harrison would suggest not. The only thing that makes sense is Glimmer Rats for a similarly gritty future war take as War Machine.)