I want some items that can only be found in a box but they are lower lvl than i am so i cant do anything.
This is major setback to my Mech built.
Perhaps it would be better to actually choose the range of box purchase like
1-4
4-8
8-12
etc

This has been suggested and rejected in the past because the devs want you to play at your level and not lower levels.

i still miss the point of that.
example:
i have a mech built so i can play my style, at lvl 22.
obviously i will get lvls and go up at lvls. But i still have Mech parts on my mech unit so can play against 22 lvl mechs.
(meaning equipment at max lvl 22 so matchmaking is against mechs at lvl 22)
But i cant try new things at this lvl because the devs wants you to play attyour lvl and not lower levels. The contradiction is that
1. Matchmaking is against mech builts not players. Meaning that you CAN play with lower lvls ( you just have to built a lower matchmaking mech) but you are not encourages to by lacking the way to change the equipment at that lvl...
So basically Devs wants you to get BORED to play with the same lvl Mech built and change it to a higher one.
2.Meaning that the Devs wants all players to increase their lvl (since there is no choice in lvling up) and compete at lvl 30 and the one with the higher fusion equipment and the more legendary weapons will win...

3.So the logical path is that EVERY MECH Built till lvl 30 and ALL EQUIPMENT will have to ascend to heaven through FUSION and all players will play with only LVL 30 MECH builts with a lot of fusion power.... hoooray this is greaat ( actually it isnt, It is just depressing to have my Gladiator or Dragon fused so i get 1 more damage at a weapon.)

There is no contradiction in it. Devs would rather have you face people your level than farm kills off the lower up and coming players. The same reason you say you don't want to fight at level 30 is what every single new player encounters at level 15. Now let's think about how that could negatively impact the game in the long run, if you're a new player and you reach a point (lvl 15) where no matter what you do you get dominated by people of a higher level with lower gear how likely are you to stay? I'd say the chances greatly reduce. Now let's go a bit further with that, if your new players are not sticking around do to standing no chance how long could the game really survive? Higher levels still play lower levels of course but imagine if they were able to spend all the money (which they earn more of due to being a higher level) on boxes for lower levels? They will end up with all the legendary items for that range, that's not a question of if but when. In summary, I still think you should not be able to select levels to buy item boxes.

Korupt i may sound offending but seriously talking have you ever even played the game?
i mean Do you have tried to xp to lvl 30 with the same way as everyone?
1.Campaign is dead boring after lvl 10.( That's about most ppl have understand the battling system and they want to play vs humans.)
2.facing som1 with full legendary upgraded gear at lvl 14 is indeed frustrating But what is more frustrating is the lvling Curb for lvls 25- 30. I assume you have of course tried that and that is why you insist on "playing the same lvl"motto.
3.Facts: I am lvl 28 and i was playing nicely through lvls 18-22 ( Basic Torso Lvl +1-2 for equipment) winning many battles and losing many battles and having a good rating of 2000-3000 up and down.
Then this is what happens: I am lvling up so i guess this should be good thing.Since also I got the legendary torso of 26 and legendary drone and epic foot and legendary weapons BUT they prove to be pretty much all useless as "my lvl" when i set it at machmaking 27 is against 30 half of the time and it is indeed a very painful experience. The difference of power is just too much, the only chance of winning is to have full consumable ( and of course opponent WONT use ANY plus the opponent to miss a couple of turns for no reason) Oh and with a rating above 3000 i lose easily to a 400 rating lvl 30 guy.

Oh by the way do you guys know that some games are setting a limit for pvp?
like Till lvl lets say 18 ppl of higher lvls Cant join?
Or matchmaking -+ 1 lvl would make much more sense?
One last thing, i have a premium account for some days if som1 is wondering about that( for double xp etc) and still the part of the game lvl 27-30 is completely boring.
I will downgrade and play at lvl 22- at least it has some sense of strategy.
edited :added a link to a popular idea of Mech Bay ( save system for Mech Builts) http://www.battledawn.com/forum/viewtopic.php?f=419&t=25671
So people like to have many different lvl Mech Builts but are not allowed to make the purchase for lower lvls eeh yea that makes perfect sense.

Simple..... Add a matchmaking block. If your anything below level 30 you can't play against level 30 mechs. Thus only level 30 can compete with each other, thus making it extremely fair.