[quote]Mission Briefing : Hunt down an invisible enemy. The Infinitum Research Intercept Squad (I.R.I.S.) is on the hunt for a fugitive, the subject of a secret genetic experiment, who is known
If you already have version 4a of the Hidden Source server installed then this file is used to update it the latest version of 4b. To install, shutdown Steam Client then simply unzip/extract to
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