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I need to know which marker is used for the webway portal, and were this information can be found. Due to the fact me freind plays Dark Eldar and he keeps using the large blast marker which doesn't make much sence.
"Iron within, iron without."
The WWP entry in the DE codex states that you use a spare 'blast marker'.
According to the 40k rulebook (p30 and p265), there are two blast markers - the 'large blast marker', and the 'blast marker'. Note that the smaller blast marker is simply called a 'blast marker' rather than a 'small blast marker'. So by the letter of the rules, the marker you use for the WWP is the 'blast marker' - the one that is 2.5" across.
If your opponent insists on continuing to use the large blast marker, then point out that by his logic, your plasma cannons (or death spitters or fire prisms or whatever else) can also use the large blast marker, since those weapons have the same wording on their profile as the WWP.
Pieplate frag missiles vs DE...Tehee.