I tried another 4 hour and finally beaten the distress call .
I don't know what went wrong , maybe the difficulty is different ?(I 'm in legendary mode), my enemy is stronger than this video.In the video CSA has 2* troops as it's main force and 1* troops as it's support unit.And they seldom use wave attack(first brigade charge , take damage to protect the following brigade charging).
I tried to copy what he do in the video,put main force in the wood , but even six brigades in the wood still can't hold the depot under two or three 3*CSA brigades charging.The wave attack made up of 2* and 3* enemy overwhelms my troops.
I have to find another way .
Thx dude, It's true that ai won't spawn as same location every time ,but put an ambush in the right forest is a option. This will protect Union's right side .
So at last I put main force on 1st depot to delay the enemy and draw the line at south forest , use fire power to reduce enemy number , take the depot back at the last 5 minutes . The battle result is not very good---5k loss and 9k kill .At least I won.
Now we came to 1st bull run , it's not as hard as before ----then I found I need use the exhausted troops wipe out the henry hill -----It'll take them 20 minutes just to walk there, let alone charge. So I have to order a bloody attack , take the vp at last 5 minutes (again). The result is not very good (again)---14k loss and 20k kill. At least I won(again).
I checked the video from Gonzo gamer about 1st bull run , he bypass the bridge and put all the force in the Matthew hill,it's nice tactic but I was tried not to make decision as I knew the history , or see the future and reload for a better result. So I accept the result and keep going on.
The next is river crossing . I still don't have any good ideas in stop charging enemy , I can just put all the nearby fire power and artillery on the enemy and use cav strike to rout them as quickly as possible. It's worked but I take heavy loss every time . The result is not very good (oh god plz not again)---5k loss and 8k kill. At least I won.
At last we has arrive crossroads, but I can't take any step any more . After three consecutive bloody battles , my economics and logistics is crashed , the money reward can't even cover the loss in battle , 16k rookies has no weapons.
In crossroads CSA can easily push my troops out from the vp , even if I win this time, it's no doubt that I can't win shiloh.Win the crossroads will cause another heavy loss and reward can't cover it .
I checked some video about legendary MG Union , only find two video in 2021 , and at that time something seems different from now. For example the deploy zone was different in crossroads . So those videos has very little reference value.
I began to think about giving up the legendary mode . Tomorrow I will retry the 1st bull run and try to get a better result ,maybe I can get more weapons by saving the friendly force this time ? If the weapon number has a big different it maybe save this campaign from restart.