First of all, I'll give you my computer information, although i am pretty sure it is more than adequate to run Arma 3.

System Information

Time of this report: 4/16/2014, 01:13:16

Operating System: Windows 7 Home Premium 64-bit (6.1, Build 7601) Service Pack 1 (7601.win7sp1_gdr.130828-1532)
        Language: English (Regional Setting: English)

System Manufacturer: Acer

System Model: Aspire X3990
        BIOS: BIOS Date: 07/08/11 09:52:00 Ver: 04.06.04
   Processor: Intel(R) Core(TM) i5-2320 CPU @ 3.00GHz (4 CPUs), ~3.0GHz
      Memory: 8192MB RAM

Available OS Memory: 8174MB RAM

      Page File: 3148MB used, 13198MB available
    Windows Dir: C:\Windows
DirectX Version: DirectX 11

DX Setup Parameters: Not found

User DPI Setting: Using System DPI

System DPI Setting: 96 DPI (100 percent)

    DWM DPI Scaling: Disabled
     DxDiag Version: 6.01.7601.17514 64bit Unicode

DxDiag Notes

      Display Tab 1: No problems found.
      Display Tab 2: No problems found.
        Sound Tab 1: No problems found.
        Sound Tab 2: No problems found.
          Input Tab: No problems found.

Display Devices

   Card name: NVIDIA GeForce GTX 550 Ti
Manufacturer: NVIDIA

If there is anything else you need to know just ask.

Now i will describe the actual problem i am having.
First of all, here is the name of the server i am trying to play on:
WS.ARMA.SU - Stratis Wasteland - UK #1 - Hosted by Inch (by Sa-Matra (v11))

While i am playing on the server, the game will randomly crash, giving the error message: "Arma 3 has stopped working."
i cannot think of any similarities in the things i was doing before the crash, but there is no warning what-so-ever. i always have a stable FPS of around 50, and there are no drops in FPS before the crash.
I sometimes crash in the lobby of the server, sometimes about 5 minutes into the game, sometimes it will let me play for around 40 mins before the crash. sometimes it doesn't even crash at all.
i have looked online for solutions, e.g. verifying the integrity of game cache, and even though there were four files missing, the crashes have not stopped.

i play with about 10-15 other people on the server all the time, yet no one else experiences the same problem.

i currently have a double monitor setup, both connected to the same graphics card. one is a large HD LG tv, the other is also a tv but smaller.
I use a razer ouroboros, orbweaver, and blackwidow ultimate 2013.

I have not experienced this problem with any other games i play, for example League of Legends, war thunder, warframe, so i do not believe there is something wrong with my computer itself.

{F23723} {F23724}