I like the addition of the new items that they've been adding this past year. It adds a freshness to GunZ. Sure it might seem that there's an excessive amount of explosives, but when the majority of players just run shotguns/meds it's good to have that big of a variety. To encourage those players to experiment outside of that comfort zone.
Not everyone is running around with explosives. But there has been an increase in explosive users since the addition of them all which I think is a plus. It's no different than you guys hiding behind corners potshotting with shotguns.
GunZ is not the only older game where everyone tends to play the same mode/maps day in and day out. Plenty of older games that have their player base dwindled down over the years on private servers are no different. Same maps, same guns, same modes.
I've tried hosting other maps, modes, options, but everyone rage quits because it's outside of their comfort zone. GunZ players are lazy.