The march of technology across BattleTech’s eras is relentless—but some BattleMech designs never die. Each installment of this PDF-only series not only includes a brand new BattleMech or OmniMech, but also details Classic ’Mech designs from both the Inner Sphere and the Clans, now fully rebuilt with Dark Age technology (3085 and beyond). Volume 4 Includes Rules and Record Sheets for: • Wasp 1S/3M/3W/4W/5A/C • Blackjack BJ-5 • Ice Ferret (Fenris) T/F/G/I/J/K • Trebuchet TBT-9N • Thresher II • Awesome AWS-11H • Warhammer IIC/IIC 2/IIC 13