Note before read: Make sure u recently once or twice played for latest updates
I am going to write this based on CSO (China) & CSO (Singapore)
Since hs dessert storm isn't a big map, I recommend weapons with high fire rate with large bullet capacity.
More weapon list are here.(Translation required recommended use Google Chrome)
A list of usable weapon based on this tutorial
-Pistol - All Dual Infinity, M79 saw off(and the similar ones)
-Shotgun - Windchester, Doublebarrel, Usas-12,
-SMG - Most of it
-assault rifle - Most of it
-Sniper rifle - All with rapid fire only.
-Light MG - All except M134
-Other - M32 MGL, ...
The blue spot in the overview is the spot(1st floor). These are the reason why I always choose that spot.
-(In ScreenShot 2) The enemy rifleman hold their position in a line near the short wall, i will be able shoot them easily with fast rate weapon. The Wall at my left will cover me from the rusty red titan and other enemy.
-(In Screenshot 3) The position of my crossfire is the position of my estimated aim of my M79 to fire at the enemy that is in the buliding. M79 is very effective in killing an area of enemy in that building or any nearby enemy of any other position in the map. Enemy rifleman also hold their position near the short walls there
-(In screenshot 4) This position (roof) is more diffulcult and less effective in using M79, I would like to mention it anyway.
-(In Screenshot 5,6) The spot is near 1 or 2 position where a titan will hold his position there,so u can go in front of the titan to shot it rapidly with your invulneablity by activate your directed bombing. (if you are using rapid fire sniper rifle you do not need go so near). Blue Titan only appear and hold this position in round 5,6,8.
-(Screenshot 7) If you think you can try kill the red rusty titan. (if you are using rapid fire sniper rifle you do not need go so near)
The screenshot 8 is just show off.
I written the info about the recoil angle and accuracy in one of the Image.
If u have to solo in round 1, this idea will work if you use assault rifle or LMG. 200 kills is needed in round 1