i found 4 turn order marker and they seem useless for me, because i do not own the ship pack one expansion.
It's too bad that i have to buy this expansive expansion only to use them.
The Turn Order Variant module is a part of the Ship Pack One expansion, so yes you can only use it if you have that expansion. This isn't a case of "SotR included part of a module that I have to buy SP1 to use", it's a case of "SotR also included a couple materials that are for use with a module that was in SP1". If you don't have SP1, then you don't have the Turn Order Variant module so you just ignore those tokens (when sticking to official materials only... obviously you can recreate the Turn Order Variant yourself or use those turn order tokens for something else if you want).