I hope you don't mind, but I passed your question on to my sister. I am clueless about make-up, but she has been obbsessed with make-up since she was ten. She currently works as a make-up artist for Aveda. This was her reply:

It sounds to me that they need to use a oil-control moisturizer, then a concealer/liquid foundation on problem areas, If they use a good oil-control moisturizer that'll take care of the weird color issue which is probably due to their foundation oxidizing when the oil seeps through, plus it'll help the makeup last longer. The acne issue has nothing to do with the maekup but with their skin care and it sounds to me like it's horomonal acne, in which cause the best thing wuld be a gentle deep cleaning cleanser, exfoliant and a salisylic acid spot treat. This would be my advice:
Daytime:
Cleanse: Aveda Outer Peace Acne Relief Foaming Cleanser
Tone: Aveda Outer Peace Pads
Spot Treat: Aveda Outer Peace Spot Treatment or another salisylic acid spot treatment
Moisturize: Aveda Outer Peace Acne Relief Lotion
Concealer/Foundation: an oil-free of your choice, my personal preference is MAC or Laura Mercier makes a great ol-free one
Powder: MAC Pressed or Loose Blot Powder

Nightime:
Cleanse: same as daytime
Tone: a gentle toner of your choice or can use the pads again if you feel you need extra help
Spot Treat: same as daytime

once skin gets clear then I would keep the cleanser the same, use the spot treatment as needed and do the toner once a day