rule book Pg 21 wrote:
Check Firing Arc (For Heavy Hitters only)
The intended Target must fall within the projected Firing Arc of the 3 forward-facing sides of the Heavy Hitter base.
Note: All Support Units have 360 degree Firing Arcs.
rule book pg 20 wrote:
*Note: A player may only play 1 type of Weapon Card per Combat phase. However you can play 2 Secondary Weapon cards as long as they
are not the same Weapon. In other words, PLAYERS MAY NEVER PLAY THE SAME FACTION CARD TWICE IN A SINGLE ROUND.
No, this isn't all that specific but gets to the answer of you can play one card of each weapon type (i.e., Primary, Secondary A, Secondary B, Orbital). It doesn't matter how many copies you may have in your hand.
rule book pg 31 wrote:
Once demolished, Buildings no longer provide cover. However, all movement rules around Buildings still apply.
Demolished Buildings are just as hard to move through!