Correct. At 600 points you have 6 actions as free actions, and any number of those can be basic attacks.

If you KO a fig on a Solo Adventure, do you get 5 points or whatever it's point value is for not exceeding the total of the team base purposes?

You get the figures full point value depending on the starting line it was nearest to when it entered the game.

You get the point value of the starting line immediately previous to the click in popped off on. So in a 300 point match, you'd generally get the lowest point value of the figure. I don't remember if there are any exceptions to that though.

For Wizkids, there's any easy way to answer this:

"Any and all effects generated by Mind Control end at the resolution of that action. i.e. any figures that become friendly to your force, wouldn't be at the end of the action."

I always just assumed this, cause let's face it... I'm not a cheater. I'm not trying to bend the rules to the breaking point... just to get a win. It's a game. It's not worth it.

Seriously? Monkey Joe becomes a part of my force forever, if I have him detached from Squirrel Girl. LAME!

Also, when TT came out, and I did a sealed. I used Fairchild to MC Cyborg off of the Teen Titans dial. If my opponent tried to say: "You can't use my switch clix. It's my sideline. You have to bring your own."
I'd flip that person off, throw his/her piece across the room, and say: "I guess he just got KO'd. 5 points to me."

Everybody says that if you mind control a team base and pop off a fig it becomes friendly to your force for the rest of the game. They say this based on the rulings for red wing, monkey joe ect. Why this wont work on team bases is because of one simple thing, they are figs not bystander tokens like the others. The rules are not the same. Case closed.

Its not required...

Force Construction

I have seen no Orange say this...feel free to provide a link or rules quote to the contrary...but if you pull that malarkey when I am judging...you get an instant DQ.

What we do have is Rules Dudes saying this issue is under review, meaning
officially there is not a hard answer. You are free to rule it as you've chosen, and that may eventually be confirmed as the right answer. But as of now it is your ruling, not the official one.

Can a team base sit on a wall? I know it can sit on two different elevations, but can it sit inside two different "rooms"

Not without destroying the wall first.

I'd have to take a closer look to be sure, but I'd guess no. You would need some special rule that allows them to occupy blocking terrain, or treat it as clear terrain, and I'm not aware of them having that ability.

Overall, with the basic team base rules, the can occupy different elevations, not be in two different rooms with a wall dividing them. However, what if they have phasing?