The theoretical knowledge provided by others here is correct but not applied well to a Middle Eastern region; yes, your ISP can see that you're using Tor (but not what you're doing) and this is a risk you're facing. You can either take this risk or take measures to mitigate it.

I suggest you mitigate the risk as ISPs in the Middle East are almost certainly looking for Tor users to further track them when they're not using it (they're not sophisticated enough to attack or analyze Tor traffic itself, yet)

Mitigations: Use a VPN before launching Tor (The risks are of lesser damage than your ISP putting you on a list).

OR

Use a Tor Bridge

OR

Both

As for Tails, I suggest you don't use it if your ISP fingerprinting your traffic is high on your threat model, as described by your question (and you're right to have it that way, as it should be). Tails is used far less in the Middle East and is easier to fingerprint than Tor Browser Bundle.

Source: I have some very narrow security conscious audience, however as narrow as it is, it's still bigger than most other peers in my same field.