One of these was cheating with an aimbot and frequently (probably automatically) changing names.

So one of these is a cheater. Likely the one with the VAC ban:

STEAM_0:0:171664763
76561198303595254
Finland

The other guy, possibly a griefer:

STEAM_0:1:53086418
76561198066438565

IMSIDDF1E8AA213C1D8CC9CD2CBCBF9E2FB606EE44F3D