In the next seven days, nothing much happened while they were traveling.
Treyton and the others would just deal with the zombies that they would meet along the road and wouldn't purposely go looking for zombies.
They had to travel as fast as they could because they wanted to arrive at the research center soon and finish their mission earlier.
They couldn't predict what the next extreme weather would be, so they had to travel as fast as they could while the weather was still good.
One of their major concerns while doing missions outside the base had always been the extreme weather changes.
If others had to travel outside and encounter such weather, a lot of them would surely suffer.
Even though they were unlucky, their team didn't suffer because they're powerful.
Treyton was there to fortify the place they had to stay at so that they could stay safe.
Theo was also there to provide materials, and the others were there to fight, cook food, or do other things.