Not a negative comment here, just actually some encouragement. You have to remember that most of the people "at the top" have been playing game for MONTHS (in my case 8 out of the 12 months this game has been live) to get where they are. And they started out in the same exact spot as every other player in the game. Penniless, lethal-less, and completely unable to understand the correct fusion pattern for an POPE.
We worked our up to where we are, and in this game, unlike MANY others, those people typically remember that and are willing to help players just starting in the form of resources, mercs, and advice that very few of us had ourselves.
My suggestion, rather than be upset that this game is pay-to-win (which it isn't), grind heavy (eh not really), and unfair (not if you are smart), take the advice older players give, ask us questions in PM's, ask us how we got our first lethal, ask us what tweaks you could make to your squad to make it better without spending a ton of resources, and be patient.
You can have a squad of 5 lethals. And you don't have to punish older competitive players to do it