Well, Welkin just needed a good cry just for him to be back on his own feet again. The reason why he acted so shitty in the past few episodes especially when Isara died was simply because he cannot cry. Tears are not coming out of his eyes that's why he feels so troubled and lost. But after Alicia hugged him and told him that he doesn't need to hold back, he started to cry his heart out.
Zero..err..Maximillian is already desperate to gain results so he staged an all out war with the Gallian army. He personally led the operation inside his tank, the Batomys and is planning to use the power of Selvaria, the power of the Valkyur to eliminate his enemies. As for the Gallian troops, they were being headed by my dear Faldio and Squad1 while Squad7 was pushed in the background by Damon. But you can clearly see that Welkin is back to old, usual self.
It too sad to say but the whole army fighting the frontlines were wiped out by Selvaria. It was only Faldio who survived because of Ramal who pushed him just right in time. He was really in a deep state of shock of what happened. When Alicia visited him in the tent, Faldio is really looks devastated. Everytime he looks at Selvaria, he remembers Selvaria and how powerful she is. As Alicia is about to go out the tent, he took his gun and shot her right in the chest.
For a second, i thought that Faldio's gonna die too. I say too because I just watched Tears to Tiara and one of my favorite characters died. So I was kinda afraid that my most loved Valkyria character will also die too. I really thanked Ramal for saving Faldio but I also empathize with Faldio as he laments over the deaths of his comrades. Oh...I wanna hug Faldio tight!!!!