Future orientation is pretty good if you take tranquillity on your sword build.
Serial killer is pointless, so is robot killer really, you should only take monster slayer for Tchort at 28 or 30.
Surprised you haven't played many sword builds with fancy footwork, I would consider that a core sword feat because of how stacked it can get with low ap flurry spam.
Sword ideally has a knife sidearm for when you miss flurry but outside that it can deal with mostly everything fine on its own.
Ah, so that's why I saw tranquility without meditation on your "Siphoner Man" build.
I personally wouldn't bother building around the tchort in a sword build. I think pretty much any decent level 25+ sword build can walk into the boss room and kill him without much issue. I killed him at level 22 with the claymore on my non-psi/crafting run, so I certainly haven't found it too difficult.
The damage given from Decommissioner is definitely too low to be useful for everyone. Maybe if someone REALLY hates arke power station it'd be a good choice late though.
I never really felt like I needed the extra movement points from Fancy Footwork or Hit and Run. Going by other people's builds, my tendency to undervalue movement points may be my weirdest quirk as a player.
I personally find that knives are really nice for dex builds. My alternative for strength builds is to have the chainsword as a secondary because its ability can be used so long as you have at least 5 AP. I've only recently warmed up to sword + gun builds, mostly because the Thumper is OP as hell early and you can shoot it at the ground to lure enemies to you without wasting a grenade. Before trying it out I'd have said sword + grenade launcher was a waste of time, but it proved shockingly useful throughout the entire game.
Just realised when reading expert sprint that it adds action points and not movement points. Probably gonna start taking 13 agility more often.