I am mainly a S.T.A.L.K.E.R, But TF2 is also my Favourite game to play.
i have beaten numerous S.T.A.L.K.E.R mods and have beaten all vanilla games.
I'll also mention that im a complete masochist towards S.T.A.L.K.E.R
list of beaten S.T.A.L.K.E.R Mods:
OP 2-1 (( Soliankowiec + Realist + I don't Cheat Achievements ) ( Cumulative Pack 2-1 or A.K.A Narodnaya Solianka hardest version, 1000+ hours of Gameplay )
OP 2.2 ( ↑ ) ( Same as OP 2-1, not many changes in quests/story )
STALKERSOUP ( A.K.A Narodnaya Solianka harder version )
SGM 2.2 Gunslinger
SGM 2.2 Lost Soul
SGM 2.2 / Yenot
SGM 2.2 S.N.I.P.E.R
SGM 2.1
SGM 2.0 / Geonezis
DYWERSANT - DIVERSANT ( SGM 2.0 / Geonezis )
MISERY
Tajne Ścieżki 2 / Autumn Aurora - Lost Paths 2 / Autumn Aurora
Złoty Kufer ( Część 1 - Prolog ) - Golden Sphere Part 1 - Prolog
Lost Alpha
Priboy Story 3.2.5
Total Faction War 3.8
Call Of Chernobyl