To implement inline inspection of all packets sent to and from the web servers using third-party firewall appliances on AWS, the network team needs to follow a series of steps that ensure scalability and proper traffic routing. The correct combination of steps involves deploying the firewall appliances within the existing VPC, utilizing a Gateway Load Balancer for traffic distribution, and updating route tables to ensure traffic flows through the firewall appliances. Specifically, the steps include deploying a fleet of firewall appliances to the existing VPC (D), creating a Gateway Load Balancer and adding the firewall appliances as targets (D), and updating the internet gateway route table and the web server route table to send traffic to and from the internet to the VPC endpoint ID of the Gateway Load Balancer, as well as updating the subnet route table associated with the Gateway Load Balancer endpoint to direct internet traffic to the internet gateway (E). These steps ensure that all traffic is inspected by the firewall appliances and that the solution can scale with the fleet of virtual firewall appliances.