读了一下这个片段,The sweeper 应该是指武器,Reacher 在设计设想有多人在这场(board)上
Reacher figured they’d put one person on the roof to spot Marty’s car approaching and give the word to the others. The car would swing on to the forecourt, and if Reacher was calling the shots he’d have it continue between the buildings and stop when it was halfway out at the other side. One person would break cover, open the rear door on the driver’s side, then drop back. Another would follow with a tranquillizer gun and shoot the target before he had a chance to scramble out of the tight space. So three people, minimum. Enough to handle the job easily. But if they were cautious they could use two people to open both rear doors, and have two with dart guns. That would require a higher level of skill and training to ensure that the guys with the guns didn’t shoot each other across the back seat of the car, but it would avoid any problems if the target gambled and threw himself at the opening door or managed to grab the gun before it fired. So more likely five people. And if they were more cautious still, they would have someone mobile to sweep up if anything went wrong. Six people. Two pairs, two singles. The same complement as yesterday.
Reacher decided to leave the lookout on the roof until last. They were too physically removed to pose a threat, and even if they were armed they wouldn’t risk shooting in case they hit their own people. The pairs were likely to be concealed somewhere near the adjacent rear corners of the buildings. The sweeper was the unknown factor. He or she would be the one to take off the board first.
If one existed.
Reacher settled in to observe. He could wait all day. Meanwhile his opponents would be getting jumpy. They’d no doubt been informed that Marty had left the courthouse. Concern would be creeping in by now. They’d be worrying that something had gone wrong. The longer the delay, the more stress they’d be under. The greater the stress, the greater the chance they’d make a mistake.