Pillowblaster's fantastic mods Guncaster, Russian Overkill and Trailblazer. They are just very fun mods overall. I would say play Trailblazer then Russian overkill then Guncaster. Guncaster is no doubt better then both of Russian Overkill and Trailblazer combined with much larger levels of polish and quality, Russian Overkill is just the most ridiculous and overpowered weapons crammed into one mod, Trailblazer is probably the least fleshed out and the most tame mod out of the holy trilogy, inspired by cheesy 80's action movies.