make the tp range around his rendezvous much smaller so he has to stand in one spot and post up like on defense, but cant use it to entry on attack. also cooldown up
personally i think riot should remove the ability for a global trip and make him stand near it for it to work, replace his headhunter with an automatic machine that shoots his headhunter, replace his tp with an activation based molotov, and change his ult to a 12s countdown in which those in the proximity of his ult lose the ability to shoot and use utility.
it’s the only fair way to make him a sentinel