Dragon offers several 1/35 scale plastic model kits featuring modern infantry and their support weapons. While there might not be a specific kit titled "Modern Infantry Fire Support Weapon," you can find kits that include various modern weapons and figures.

Here are some popular options:

Modern Infantry Figures

• US Army Infantry: These kits typically include figures in various poses, armed with modern weapons like M4A1 carbines, M16 rifles, and M249 SAWs.
• Russian Infantry: These kits often feature Russian soldiers armed with AK-47s, RPG-7s, and other weapons, capturing the modern Russian military aesthetic.
• British Infantry: These kits may include British soldiers armed with SA80 rifles, L85A2 rifles, and other modern weapons.