An infantry squad vehicle is like a big car that can fit about eight soldiers and all of their equipment. It has a powerful engine that helps it drive over rough terrain and go really fast. It also has really strong armor to protect the soldiers inside from things like bullets or explosions. The vehicle has space to store weapons and supplies, like guns and food, so the soldiers can focus on their mission instead of carrying heavy stuff. So basically, it's a vehicle that helps soldiers get where they need to go and do what they need to do, while keeping them safe and making it easier to do their job.