File photo of the Soviet D30 122 mm howitzer
https://cdn.masto.host/daircommunitysocial/media_attachments/files/113/688/153/156/592/457/original/230eff2c059891a3.png
A few minutes of searching, and I stumbled upon what looked like artillery guns at the stadium's main gate. I asked a renowned weapons expert to analyze the images. Wim Zwijnenburg of Dutch peace organization Pax identified them as Soviet origin D30 122 mm howitzers.
Here's a file photo of the model. They have a range of up to 15km, but with self propelled ammunition they can hit targets 20km away. This brings many rebel held villages within striking distance.
GNU social JP is a social network, courtesy of GNU social JP管理人. It runs on GNU social, version 2.0.2-dev, available under the GNU Affero General Public License.
All GNU social JP content and data are available under the Creative Commons Attribution 3.0 license.