i asked reddit something similar with regards to a perma-spy as a 7th class
"So you guys must know Extine he makes really cool new competitive modes because people need new competitive so I have an idea why not use 7 people on each team? So its like 6 but 1m ore so its kind of like 9v9 which is HL but 7v7 so 7lander??
ok so in 7 lander what u do is u have 6's like 6's class then u have perma spy and the perma spy uses BACKSTAB technique to stop push and to make push happen i think its GENUIS and makes spy a very good class
how do u all plead??
EDIT: Guys im refreshing this page alot becasue im afraid u all dont understand and i want to help u explain because im a competiteve teacher so let me teach u what i mean :-)
EDIT 2: wow I now know why my Teacher Gets so Frustrate siometime now that i can See how little u guys GET IT>>??? but Im gona be more patent like my teacher and Make sure u all know Why 7v7 with Spy Permamain will work.. And You will all make sure Steam knows it and it will be great !! I cant wait this is gonna be really exciting guys"
got a lot of great responses, especially from thesteam