As the defender I like to have some 1/2 fe features, then again I do clutter up the table.
I always use orchards and vineyards if I can use ambushers. 1/2 FE size means that an attacker can lay down 4 pieces of terrain rather than the normal 2 bits, and the more terrain you lay for some armies the better i.e. a foot heavy army vs a mostly mounted one.
As a defender the situation is even better as you can literally swamp the table in terrain favourable to you and hopefully not to your opponent.
But I think that you can only have 3 1/2 FEs, this I think means that as an invader the total number of area featufes you can place is three ( for maximum cover 2x1/2 FEs and 1 FE ).
I did wonder at the size of Orchards and Olive groves, indeed how one would put down any that were compulsory ( in old dbm books ) but in thats the rules and as the new army books are written I think that a lot of these compulsories are being removed. I do feel where these terrian types were used ( Greece etc.) it is possible that other terrian resticted the size. As they also are placed later in sequence there is more chance of fitting them in.
The question about them I would ask is why is one restricted to having only 1 1/2 FE of either orchard or olive groves, yes I do think 1 oasis is reasonable but the other 2?
The next would be if Orchards and Olive groves can be only 1/2 FE size why can one take 2 FE of an Oasis ?
And lastly ( as I live in the land of scholars ), why are boggy flats only 1/2 FEs, you should see the sizes of boogy flats ( not boggy enough to be marsh ) around here.
William ( upto my ankles in it )