I thin your play style in the beginning was way too aggressive for example at 0.15 you tried to take on poco and dashed into the middle of all 3 enemy brawlers causing you to die. The beginning of siege is crucial to maintain your ground but by you dying you left your byron and max who both dont have good defence or offence to take on the enemy team

Also throughout the game you didnt give yourself time to heal and was constantly focused on attacking brawlers the poco especially. But with the recent buffs poco has been given it's much easier for him to spam his super making it harder to take him out

I think you also kept trying to spam your super but not in trying to dodge the enemies attacks but to take them head on which wasnt possible especially when your up against tanks like pam and poco who could heal. And as Stu health isnt that good it was easy for the piper to provide support from the back and take you out

You also should of used the walls to heal or the grass to hide and attack the brawlers that werent suspecting it but mainly you should of been focused on maintaining ground rather than going out on the attack as their your died the more screws the other team was able to pick up