Ace of base- part 1

Okay more on the basing problem. This time with pictures.

Stituation 1:

Here we have a Thousand Sons Termie (converted from a chaos squat in exo-armor) shooting at a genestealer. They are 6" apart and nothing is between them.

Would you let the termie fire on the stealer? Does the stealer get cover?





Does that count as area terrain? If so, across the whole base, or only in part, and if in part, what part?

By the way, that's my new Tyranid color scheme and my new Tau scenery stuff that I'm planning on taking to the con and then putting up on eBay.