It's totally cool guys, I definitely understand being confused.
Few things first, this roleplay fits in a lot better under the "free" section, which basically means that the size of your posts are up to your own discretion. In the casual section, each post needs to have at least one well-formed paragraph, and post speed is drastically limited compared to free, normally us in casual prefer to wait until 3-4 others have posted before making another post. The Advanced section is a bit intimidating, as posts there are preferred to be 6+ paragraphs per post.
Another thing, the FIRST OC post for any thread is the RP's Introduction, this is where you explain the Plot, Setting, Timeframe, Character Skeleton etc. After a character is written up, it has to be posted to the OC for approval, once approved they're moved to the Character section.
While this isn't technically a rule, it is a basis that everyone on this website operates from; Roleplays here are primarily character driven, while the GM does have control over the over-arching plot, we GMs don't lead the rp the way
@Patient 43Delta has been doing. I've seen that you'll post events in the IC.
For example:
Off in the distance, X heard a scream, a human scream. Followed by the scream of A feral and a few gun shots. It came from down the street towards the old market.
This style of directing the RP is incredibly uncommon, and will actually scare a lot of RPers away from participating. The GM's have to be much subtler about leading their RPs, and can't directly state random events affecting characters. Instead, the characters will have to create what is happening around them, Instead of being told so by the GM.