Can any one make a modpack?

[Kronosir]

Hi, so I am asking here, can anyone make mod pack, no matter which mods just so it isnt tower defence or something similar since I was trying and trying to make like 3 mods to work, well 3 main mods I wanted and few more others but every time I did my world would not load, I could not even choose world, could not make new colony, and many many more problems that I dont have clue on what to do like one problem I know what it is but dont know how to fix it and are pink boxes, I guess those are items missing textures or something. Anyways what I want to say, could any one put a nice modpack from around 5-15 mods that would work nicely and add like more guns, more factions and more craftable items? If so when you done please send me link to it so I can download or post it as official modpack under mods?