For detecting HIM, the Instinct mod by Ryocery can be used.
For killing HIM, you can use the Chicken Jockey SWEP, the radio weapon in the HL2 Beta weapon pack and Blue-Pentagram's Death Note mod.

Some skill involved, but these boomerang weapons are fun and one-tap anything
https://psteamcommunity.yuanyoumao.com/sharedfiles/filedetails/?id=2644764899

cheeky ♥♥♥♥♥♥ aimbot (sv_cheats 1, host_timescale 0.01, toggle and hit him with a one-tapper before he can react.. maybe? also locks onto the ghost form)
https://psteamcommunity.yuanyoumao.com/sharedfiles/filedetails/?id=3442249414

may not even have to try with this one
the dev, new source, makes a variety of unique one-tap weaponry, look over his workshop
https://psteamcommunity.yuanyoumao.com/sharedfiles/filedetails/?id=2193253766

the concept of this is cool, could do with a prettier execution but it did track the ghost
https://psteamcommunity.yuanyoumao.com/sharedfiles/filedetails/?id=3109896693

same dev, you can locate him,
https://psteamcommunity.yuanyoumao.com/sharedfiles/filedetails/?id=2804331816

and escape his void
https://psteamcommunity.yuanyoumao.com/sharedfiles/filedetails/?id=2804331705

my personal favorite. it's hard as hell to catch him with this but i love having his perspective
https://psteamcommunity.yuanyoumao.com/sharedfiles/filedetails/?id=559017762

so this scales with health and i think it supports nextbots..
anyone down to type out a novel to kill him?
https://psteamcommunity.yuanyoumao.com/sharedfiles/filedetails/?id=3332826338

For me, sanic clone nextbots work, not only do they go right to him, but they also instakill him!

引用自 TBgλmer：

sanic clone nextbots work, they instakill him!

So does the NPC in this thing, which I was not expecting, and it owned him several times in a row, to the degree I felt the need to apologize
https://psteamcommunity.yuanyoumao.com/sharedfiles/filedetails/?id=3518981325

i dunno if i was detecting him or not (since i was playing on gm beta 13, the haunted map) but the alien isolation motion tracker kept detecting something running around. scared the ♥♥♥♥ out of me it did
https://psteamcommunity.yuanyoumao.com/sharedfiles/filedetails/?id=3100506899&searchtext=alien+isolation

depending on how you can aim, you can literlaly one shot HIM
https://psteamcommunity.yuanyoumao.com/sharedfiles/filedetails/?id=1710471313

For the moment, my n-___--__d ha- - _ --port wi-h u__qu_ -Fec_s _
https://psteamcommunity.yuanyoumao.com/sharedfiles/filedetails/?id=3536802691