主题：【整理】中缅边境记事 -- 从北苑到太古

don't need to use the helicopters to carry 交通工具. it's possible that 交通工具 can be pre-arranged to the landing area. it could be trucks if there is a road to the training camp, or it could be boats if there is a river goes through the forest to the camp.

it's reasonable to assume china has undercovers/insiders in the camp & nearby area so they know the camp location and other info before the attack. these people could pre-arrange the transportation tools in advance before the attack.

the author has said he made a mistake about the statement "50公里的原始森林穿插只用了不可思议的一个半小时". "50公里" could be a typo, and"一个半小时" could be a typo, but the word "不可思议" couldn't be a typo. "不可思议" means the author is very surprised by how fast they got through the forest.

on the other hand, the author didn't correct the miles or time in his statement. obviously if he provides the actual miles/time or kept saying "50公里" &"一个半小时", he'll need to provide the details/explain how it could be done. this is something he probably doesn't want to get into/say in the public.