Hi,
1) Most static models from FPSC will work out of the box, however, currently, legacy characters, weapons and dynamic objects aren't supported. We plan on adding legacy support to later versions.
2) Scripting is via the LUA scripting language. LUA is fully intergrated, but currently there are only a few commands to communicate with the engine. The scripting languge will be expanded up over the next few months.
3) Currently, only videos are supported, however support for other formats will follow as the engine expands.
4) As Reloaded is in Beta there is no manual, as the engine is likely to change during development. Once there is a final release, we will provide a manual. In the meantime, our friendly community is always willing to help with questions.
5) No, that isn't possible. Please feel free to visit our feature creep board if you'd like to suggest it as a possible expansion for the future.
6) Minor interaction is possible via scripting currently. E.g. Pick up objects, open gates, etc. Again additional support for greater interactions will be added later.
7) This would be possible via scripting, but currently, I'm not aware of any scripts for it.
I hope that helps.
SC
i7-4770s 3.10ghz - Geforce GTX 650ti