From what I understand about Tyler's cloud app, he can take himself out of the running to be nominated either at the initial HoH nomination ceremony or the veto re-nom ceremony. So, what Tyler is trying to do is convince Haley not to put him up initially because he'll just win the veto and if he doesn't he can just backdoor her. Haliegh said what kind of pitch is that. Of course she doesn't realize he is doing that to ensure he will not be on the block. If he doesn't win the veto he'll just sit on the cloud for the re-nom ceremony and if he wins veto he can keep his app for a future time.
So basically once he is on the block he cannot use it, that is why he is trying to get her to backdoor him, pretty much securing his safety. Unfortunately I think Haley is going to do this. She told fessy she doesn't want Tyler in the veto comp because he can win it so she has to back door him. I just don't understand this strategy especially when there are 9 of them left, there is such a high chance he will be in the veto comp anyway, so just nominate him.
Now with the hacker twist it isn't clear if he can sit on the cloud for that. His app was given to him before this twist came out, so people are saying he cannot use it for the hacker twist, but since he is a production favorite maybe he can. He didn't use it this past week because he was blindsided by the hacker, so this week he may ask if he can use it if he doesn't win the hacker or he's not sure who won.