Oil filter suppressor/metal&stone walls/zombie camouflag

[PZDCNHBLT 1]

1. I suggest to developers add a new type of crafted suppressor for weapons, made from a combination of an oil filter and rags. The durability of this suppressor should be average, between a bottle suppressor and a factory-made one. The spawn locations for the oil filter should be garages and broken-down cars.
    
2. I suggest doubling the durability of metal walls. For example, if a regular wall requires 6 grenades plus 6 for the frame, totaling 12, then metal walls should require 12 grenades plus 6 for the frame, totaling 18. This change would be more fair since metal sheets are harder to find.
3. I also suggest adding a new type of fence(stone walls) made from a certain number of large stones and a couple of wires. The durability of this fence should be twice that of a wooden fence.
4. I suggest adding a common radio channel that would inform players about military convoys and trains carrying valuable loot. This feature would also enable interaction between players competing for these valuable resources.
5. I suggest adding a zombie camouflage feature, similar to what is depicted in "The Walking Dead." For example, players could quarter a zombie and cover themselves in its guts. This would make them invisible to zombies for 10-20 minutes or until they make a gunshot or start running fast. The cost for this could be a reduction in the condition of the player's clothing by one level. This camouflage would not work on zombies wearing gas masks(ChemZones). Additionally, if a player has a cold, the camouflage would also be ineffective.

Bases are primarily the only reason players interact with each other, and weaker bases diminish the desire to play since they are easily raided. The abundance of weapons in the game turns survival into simple PvP. In my opinion, powerful military weapons should spawn in limited quantities and only at helicopter crashes, trains, convoys, and chemical zones. This would make players value their lives more and truly focus on survival, fearing the loss of valuable loot.