If I wanted to know about how the investment work, should I get the licence and get the job first in order to familiarize with the field. 

It is absolutely possible to get your RE licence while on active duty.

I think you will find a wealth of information available to you here  at BP - and you can certainly use it attain success - but Bigger Pockets , in and of itself - is not going to take you where you need to be anymore than a drivers licence can get you across town.

I am currently in college and am looking to complete my real estate licence through OREA (I live in Ontario) as I have some spare time at the moment.  

., foundation, electrical, plumbing etc was done by regular licenced crews, so, imo, you should not be concerned, beyond normal.

Partner 2 (part-time property manager, licenced) will be PM and run the rental.

While doing this you can obtain your real estate licence and work as an agent.Fast forward 2 years you can see where your at and which direction you want to continue in.

As much as I dislike government interference in business I strongly believe landlords need to be educated and licenced prior to being allowed to have tenants otherwise it should be mandatory to use a licenced PM.Buying a property is only the tip of the iceburg regarding being a real estate investor.

Once i get my RE license I have have a family friend that will sponsor me, and ill continue to work full time at my current job.Once I have my salesperson licence i plan to manage some investment properties of friends and family part time.   

you can do alot of work yourself in Oklahoma but some things will require a licence to pull the permit and get the inspection approved.