easiest way (even a good placeholder) is to insert a text/picture-hud as long as you dont have video/sound-materials.
search for "crthud" in the forum, best way to insert png-pictures into fpsc, it even produces the scriptfiles you need for the triggerzones (marker-zone where hud/video/sound is placed) and puts the choosen pics into the right folders in dds-format. great tool, thanks @wolf for giving me the hint for that.
in this way you can easy create story or character-speach and drive the story through your levels.
just for info:
a concept is a whole description of the project, a project-pitch, including gameplay,graphic-conceptional arts, sounds & music, story and level-scetches etc.
right question would be:
how to place storyvideo or text into fpsc-levels?
gz