The speed difference between the correspondent and the team is 6-2=4M/S, 400/4= 100S, that is, it takes the correspondent 100S to reach the head of the team.

Sum of return speed: 6+2 = 8m/s, 400/8 = 50s, and the round trip time is 150s.

In this process, the advancing distance of the team is 2* 150=300m.

The travel distance of the correspondent is 6 *150 = 900 m.