Hello there !
I got the S Skin Postman but unable to use the S skin in game because my fps drops and my phone freezes for some reason. But here you go, a gameplay of mine using Postman.
Postman is a really good support and can give buffs to all survivors. He may look simple, but it is quite difficult to master as well as to have a very good game sense. So for instance, if someone is kiting, if you can give them a buff, whether it is a vaulting buff or speed buff, make sure you send it right away so that they can last long. The vaulting 10% buff is pretty OP to me because it is permanent. It does give you fast vault and really useful for kiters. Also the dungeon mail is very good for end games. It is also permanent and it gives you permanent gate -opening buff as well as lets you see the dungeon location. The rescue mail is also really good because it lasts around 180 seconds.
Some build postman as a kiter, which is really fine because he isn't a hard-rescue character. I built him as a rescuer because i can give myself a rescue buff and i can rescue faster to avoid things. Also if I give buffs to other survivors and the mails are successfully delivered, I will also get the buff.
My suggest is to practice memorizing the symbols and build good game sense.
For now, he is quite OP as a support. But when he is found first, he doesn't have anything but his mails to buff him. If there's a seer in the team, it will be useful for postman to be able to kite or buy time longer.
And hey! It has been a while and I have been busy with myself. Don't worry I saved tons of my gameplays including last season's gameplays ! My last tier was mammoth 1. I tempted to rank until Griffin, but I decided to take a break because I have a lot of things in my hands at that moment and was pretty stressful. So i took a break and just play quick matches as usual. Maybe this season I can reach Griffin, who knows !
Anyways, I'll try to upload more videos if possible ! Have a great day !