Like many players I like PvP and I notice, the changes are needed. Fights end too quickly. My favorite example: 2 x burst with LSW in the back. Much depends on luck, not much depends on skills, that should be obtained along playing. Every new player and his neighbors download PvP build from forum. At the same time they don't know why it looks like that. After a few days of exping they come into PvP fights and they have the same chances like experienced players. More things should rely on player's experience.
I was thinking about new skill like "taking cover" or sth like that. Presently, it's hard to use obstacles in fight. When the skill bonus for sneaker standing near a barrel was introduced, I thought it's the thing I will never use. However, once I was running away from hostile sneaker and reminded about barrel. I used it, survived and the enemy was surprised. I noticed, enviroment object can diversify the gameplay.
My idea is about existence of area, that gives you additional damage resistance points, when you stand behind some kind obstacle or near corner of the building. It protects you only from defined directions and this area increases within raising of the skill. It'd allow creating new unique tactics, give an advantage to experienced players, who knows spots well and make fights longer. Fact, obstacle protects you only from one direction and make impossible existence of ideal obstacles and forces players to fight with various ways.
I've seen an idea about increasing HPs to 300-500 and decreasing damage of weapons. In my opinion, it will make the fights longer, but in the artificial, innatural method. The winner will be a person with larger amount of stimpacks.
I am not sure, if it's the best description, so I paste a picture:
Blue area depends on skill and gives damage resistance points. In closer area, that are not filled with colour, there is no effect.