User blog comment:Pijuyo2/Deceased Characters (final version)/@comment-3305911-20101230042932/@comment-1671874-20101230185613

Cable and the nex X-Force used his teleporting technology to go into the future to stop an army of Nimrod sentinels from killing all mutants. The only way for them to return was for Cable to sacrifice himself by not fighting the techno-virus inside of him and let it consume him. This allowed all of X-Force to get back to the past, but he died because of it. X-Force Vol 3 #28.

Sentry killed Ares, and a few days later, weak from the strian put into killing Ares, he was almost too easily killed by Thor, his remains thrown into the sun. In What If? #200 they explore what would've happened if he killed Ares earlier, and he wasn't a little weakened.

Wolverine also killed Cyber, Omega Red, and Feral died from Sabretooth before he died, and Wild Child died from Omega Red before he died. All for Romulus' plan..

Didn't follow Shadowland but that sounds right, and hey Bullseye was a little rusty, he just finished pretending to be Hawkeye with bow and arrows.