I started in a BlackHawk vest very similar to that and honestly it is probably more than good enough for the task.
That being said, does it look a little noobie... Well yes..
I have used most loadouts from carrying way to much to being striped down for speed.
The two that I tend to use depending entirely on the look i want, since both carry the same.
Plate Carriers, of which there are many to chose from are excellent. Feel great on and give you a little protection from the front and back.
When you are talking a chest rig I am assume you mean something like a Haley | D3CR- H CHEST RIG or similar. These are super light weight and usually my go to rig.
The reality of why it really depends on looks, is because of what you will generally take into a game.
Gun,
4 High caps ( I carry 8 mid caps, 4 on rig, 1 on belt, 2 on leg, 1 in gun )
Bag of BB's
Dump pouch
Maybe a spare battery
Maybe water/haribo
That is not a whole lot to carry and most of that could be run on a belt rig, so either rig is more than upto the task.
So my TLDR answer. Decide on what pretend soldier you want to look like and buy that rig.
Looks matter more than function for the most part