Can two units on opposite sides of a barricade be engaged with each other and conduct melee attacks; or a window or other similar piece of terrain?

Do suppression tokens still provide cover in a melee?

I'd say no. Melee indicates base to base contact.

"barrier between them" indicates they are not in base to base contact.

30 minutes ago, AJSGF798 said:

Can two units on opposite sides of a barricade be engaged with each other and conduct melee attacks; or a window or other similar piece of terrain?

Do suppression tokens still provide cover in a melee?

No on both counts. You must be in base contact (i.e., bases directly touching) to be in melee.

And cover only applies during ranged attacks. The Suppression section specifically refers to ranged attacks as well.

What do you mean by "suppression section specifically refers to ranged attacks"? Just want to make sure I'm reading the right passage so I can quote it when challenged.

If a trooper unit has one or more suppression tokens assigned to it, that unit improves its cover by one when defending against ranged attacks. RRG pg 42 very first sentence on the page.

3 hours ago, AJSGF798 said:

What do you mean by "suppression section specifically refers to ranged attacks"? Just want to make sure I'm reading the right passage so I can quote it when challenged.

I was talking about this from page 42:

Quote

If a trooper unit has one or more suppression tokens
assigned to it, that unit improves its cover by one when
defending against ranged attacks.

Just emphasizing that cover is only applied on ranged attacks in general. Pretty much everywhere you look in the RRG, cover is discussed in the context of ranged attacks.

Great, thanks!