@FedoraTipper You might be onto something there.
Copy your BFBC2 cd-key from steam or any other source 4. Redeem your cd-key in origin 5. Select BFBC2: Deluxe Edition you'll get BFBC2 vanilla + vietnam for free on Origin. Woah thanks OP! So just so that im not mistaken, once you do this you can use the vietnam dlc with your steam copy of the game? For Battlefield: Bad Company 2 on the PC, a GameFAQs message board topic titled 'Boxed vs. Use your serial key or product code to create a digital copy of your game. You can redeem most game codes in the Origin client or origin.com. You can redeem most game codes in the Origin client or Origin.com.
My most recent system upgrade has made a noticeable difference (and improvement) to the FPS.
mesa: 18.1.7-1 -> 18.1.8-1 (and lib32-mesa also of course)
linux: 4.18.5.arch1-1 -> 4.18.6.arch1-1
vulkan-radeon: 18.1.7-1 -> 18.1.8-1
steam: 1.0.0.55-1 -> 1.0.0.56-1
Edit: forgot to mention: tested on Proton 3.7-5 beta
When I first spawned it took a while to see anything (just like last time) and when I did the game was freezing a lot (just like last time) but then the freezes became less frequent and usually only appeared again when I ran to a different place or when I aimed down the sights. If I aimed down the sights again it was usually smooth, unless I turned to face a different direction or changed location. If the freezes weren't there I think the game might be playable now on my setup.
If there's anything else significant here I surely don't know what it was:
Full update log> $ cat /var/log/pacman.log | grep -i upgraded
Best Sniper On Battle Field 4
upgraded s-nail (14.9.10-1 -> 14.9.11-1)
upgraded libva-mesa-driver (18.1.6-1 -> 18.1.7-1)
upgraded wayland (1.15.0-1 -> 1.16.0-1)
upgraded mesa (18.1.6-1 -> 18.1.7-1)
upgraded mesa-vdpau (18.1.6-1 -> 18.1.7-1)
upgraded vulkan-radeon (18.1.6-1 -> 18.1.7-1)
upgraded weston (4.0.0-1 -> 5.0.0-1)
upgraded linux-firmware (20180815.f1b95fe-1 -> 20180821.1d17c18-3)
upgraded linux-firmware (20180821.1d17c18-3 -> 20180825.fea76a0-1)
upgraded linux (4.18.4.arch1-1 -> 4.18.5.arch1-1)
upgraded geogebra (6.0.472.0-1 -> 6.0.487.0-1)
upgraded upower (0.99.7-1 -> 0.99.8-1)
upgraded librsvg (2:2.44.0-1 -> 2:2.44.1-1)
upgraded sudo (1.8.23-2 -> 1.8.24-1)
upgraded ghostscript (9.23-2 -> 9.23-3)
upgraded vim-runtime (8.1.0279-1 -> 8.1.0333-1)
upgraded gvim (8.1.0279-1 -> 8.1.0333-1)
upgraded hexchat (2.14.1-6 -> 2.14.2-1)
upgraded libssh (0.8.1-2 -> 0.8.2-1)
upgraded fontconfig (1:2.13.0+15+gc60ed9e-1 -> 1:2.13.1-1)
upgraded gobject-introspection-runtime (1.56.1-1 -> 1.56.1-2)
upgraded keyutils (1.5.10-2 -> 1.5.11-1)
upgraded lib32-fontconfig (1:2.13.0+15+gc60ed9e-1 -> 1:2.13.1-1)
upgraded lib32-keyutils (1.5.10-1 -> 1.5.11-1)
upgraded librsvg (2:2.44.1-1 -> 2:2.44.2-1)
upgraded electron (2.0.7-1 -> 2.0.8-1)
upgraded wine (3.14-1 -> 3.15-1)
upgraded geoclue2 (2.4.11-1 -> 2.4.12-1)
upgraded cantarell-fonts (1:0.101-1 -> 1:0.110-2)
upgraded gcc-libs (8.2.0-2 -> 8.2.1+20180831-1)
upgraded gcc (8.2.0-2 -> 8.2.1+20180831-1)
upgraded lib32-gcc-libs (8.2.0-2 -> 8.2.1+20180831-1)
upgraded dxvk-win64-bin (0.70-2 -> 0.71-1)
upgraded dxvk-win32-bin (0.70-2 -> 0.71-1)
upgraded dxvk-bin (0.70-2 -> 0.71-1)
upgraded cantarell-fonts (1:0.110-2 -> 1:0.111-1)
upgraded fontconfig (1:2.13.1-1 -> 2:2.13.0+15+gc60ed9e-1)
upgraded gnupg (2.2.9-1 -> 2.2.10-1)
upgraded gsfonts (20170829-1 -> 20180524-1)
upgraded libtirpc (1.0.3-2 -> 1.1.4-1)
upgraded lib32-fontconfig (1:2.13.1-1 -> 2:2.13.0+15+gc60ed9e-1)
upgraded libdrm (2.4.93-1 -> 2.4.94-1)
upgraded lib32-libdrm (2.4.93-1 -> 2.4.94-1)
upgraded libjpeg-turbo (1.5.3-1 -> 2.0.0-1)
upgraded lm_sensors (3.4.0-4 -> 3.4.0+5176+dcf23676-1)
upgraded re2 (20180801-1 -> 20180901-1)
upgraded steam (1.0.0.55-1 -> 1.0.0.56-1)
upgraded zita-alsa-pcmi (0.2.0-4 -> 0.3.2-1)
upgraded zita-resampler (1.6.0-2 -> 1.6.2-1)
upgraded ghostscript (9.23-3 -> 9.24-2)
upgraded gsettings-desktop-schemas (3.28.0+1+g85521dc-1 -> 3.28.1-1)
upgraded wayland-protocols (1.15-1 -> 1.16-1)
upgraded p11-kit (0.23.13-2 -> 0.23.14-1)
upgraded ca-certificates-mozilla (3.38-1 -> 3.39-1)
upgraded dbus (1.12.10-1 -> 1.12.10-2)
upgraded nspr (4.19-1 -> 4.20-1)
upgraded nss (3.38-1 -> 3.39-1)
upgraded firefox (61.0.2-1 -> 62.0-1)
upgraded lib32-nspr (4.19-1 -> 4.20-1)
upgraded lib32-nss (3.38-1 -> 3.39-1)
upgraded nodejs (10.9.0-1 -> 10.10.0-1)
upgraded tslib (1.16-1 -> 1.17-1)
upgraded udisks2 (2.7.7-1 -> 2.8.0-1)
upgraded coreutils (8.29-1 -> 8.30-1)
upgraded curl (7.61.0-2 -> 7.61.1-1)
upgraded file (5.33-3 -> 5.34-1)
upgraded glib2 (2.56.2-1 -> 2.58.0-1)
upgraded ghostscript (9.24-2 -> 9.24-5)
upgraded json-c (0.13.1-1 -> 0.13.1-2)
upgraded lib32-curl (7.61.0-1 -> 7.61.1-1)
upgraded libcurl-compat (7.61.0-1 -> 7.61.1-1)
upgraded lib32-libcurl-compat (7.61.0-1 -> 7.61.1-1)
upgraded libcurl-gnutls (7.61.0-1 -> 7.61.1-1)
upgraded lib32-p11-kit (0.23.13-2 -> 0.23.14-1)
upgraded lib32-libcurl-gnutls (7.61.0-1 -> 7.61.1-1)
upgraded mesa (18.1.7-1 -> 18.1.8-1)
upgraded lib32-mesa (18.1.7-1 -> 18.1.8-1)
upgraded lib32-vulkan-radeon (18.1.7-1 -> 18.1.8-1)
upgraded libarchive (3.3.2-2 -> 3.3.3-1)
upgraded libva-mesa-driver (18.1.7-1 -> 18.1.8-1)
upgraded linux (4.18.5.arch1-1 -> 4.18.6.arch1-1)
upgraded mesa-vdpau (18.1.7-1 -> 18.1.8-1)
upgraded polkit (0.114-1 -> 0.115+3+g8638ec5-1)
upgraded qt5-location (5.11.1-2 -> 5.11.1-3)
upgraded sudo (1.8.24-1 -> 1.8.25-1)
upgraded tumbler (0.2.1-2 -> 0.2.2-1)
upgraded vulkan-radeon (18.1.7-1 -> 18.1.8-1)