If the Hundred Years' War had been fought with paintballs instead of rifles, it might still be happening, but it'd be so colorful that no one would mind. Experience your own vibrant battlefield with today's Groupon: for $20, you get a paintball package for two including entry (a $15 value), equipment rental (a $20 value), and 100 paintballs (a $10 value) for each person at Operation Milsim Paintball in Fort Erie (a $90 total value). This Groupon is valid for public walk-on play held 12–4 p.m. on Saturdays and Sundays.

Operation Milsim Paintball equips sharpshooters for four hours of weekend walk-on play on its 10 acres of outdoor fields. Pretend-mercenaries of all skill levels arm themselves with premium markers, air tanks, masks, and hot air balloon exit strategies before charging onto three fields dubbed TacTown, Bush, and OAS. There, players evade pigment-projectiles as they dodge behind stacks of tires, plywood structures, and abandoned cars, while referees maintain clean, safe games in adherence to Operation Milsim's rules and regulations. Visitors can restock their paintball palettes for an additional cost ($40 for 500 rounds) and check out the company's FAQs before arrival to enhance their experiences.