Demolisher Cannon
Hellhammer Cannon
Heavy Mortar
Medusa Siege Gun
Heavy Siege Mortar
2 Twin-linked Stormshard Mortars
Earthshaker Cannon
Chem Cannon
Inferno Cannon
Melta Cannon
Quake Cannon
Tremor Cannon
Flame Belcha
Supa-kannon
Supa-lobba
But as we can see in game, for example, Inferno and Chen Cannon doesn't have such trait icon.

Also, in Editor if we will start Combat Simulator with follow settings:

in Combat log there is no reduction of Cover (according to strings.whdat: Siege Ignores 1/2 the cover bonus provided by any terrain, so Dead Forest has Cover 35% and should be reduced to 17.5% )

So, does this trait even works now?



