I am not a staff member but part of this com for many years and think I can answer this:
Cheat Happens offers Software as Service and nonstop and constant work on several dozens of treainers every week and month. So you pay for the service of playing games with validated and functioning trainers even for older games.
The "single purchase trainers" are the absolute exception for free accounts, thats why (I feel) there is no sperate list.
95 of 100 trainers are Premium and 1 of 100 or sth like that are lifetime trainers (for games that reuire at least 20+ updated within their lifespan).
For the Ghost Recon Breakpoint a single purchase would be to "cheap" as this is a game that will be updated frequently and demands a load of staff hours.
So the deal is 1 month sub CH Premium or 2 (depending on how long you play this) months and then you might cancel the membership. If you will need a trainer longer than 1 month just sub for year and support the devs and site
Be happy to answer more questions