@Tacrix
Well I never tested this mod and didn't read everything of the description but may that what you search
https://fr.gta5-mods.com/scripts/back-to-the-future-time-circuits-mod

( If you don't know this movie I highly recommend it a bit old but still as fun as it's first day xP)

Well
I would like to know if some one would be able to retexture the current alien of gta 5 with The Martian from Mars Attacks (movie) alien

Also I've already seen these alien on left4dead so I guess there is already a model somewhere

@Marco_italy I also noticed that you put a lot of trees, I recommend you (and not only for this map but in general) to add the veg at the end when all the necessary is mapped
The reason is that tree use more ressource than other object and will reduce your max prop limit in addition of lowering fps ;O
I've been trolled some time cause of this, was mapping the veg at start and finally noticed that my save wasn't fully loaded cause the max prop limit was lowered

@charles10241 As I said you can find it in most of mapper zip (my maps almost all have it if you want check them
Also I asked rappo if he could put the version 1.0 into the OSU zip so you can also go back on Object Spawn Unlocker page and redownload the zip (that now contain the 1.0 too

Object Spawn Unlocker still work, the version available on the page (1.1) is not working but you can use the version 1.0 or spooner (yu can find 1.0 into some mapper zip (mine almost all have it if you want))
About the 10k objectlist it still work too ;P

Well map editor will be easyer to use, but spooner have more anim/etc option I'll say that Map Editor is better for mapping but that spooner is better for ped and car
, unfortunatly guad and maff don't seems to want to work together ;S

you can already have all gta building using the 10K objectlist addon ;P (you also have the ground/ road / river / etc coming with it

@HenryTux

Well I've already mapped most of the building
I just don't know if it's better to make the attachment with or without the ped in the building

with ped the building can be killed but it make the building move a bit (it's fun ;p) and it's not exatly plane if the ground is not flat
without ped (only object attached together) the building is perfect but Idk if I can make it destructible (I don't use menyoo often ;S)
So if yoou could just give me some suggestion about that it would help me to finish

About what I already build
There is some trap like fuel / elec pilon / elec fence / wooden/metal spike / barbed / etc (Will try to make more) and they seems to all work xD
Some building (with ped in it till you answer me what you prefer also may you prefer add the ped yourself or work in an other way) like Tower / a Basic Shelter (I'll make a better one) / planter (with or without veg/crop) / some Wall ( and defenssive wall) / a Water recuperator / a generator / some gate / etc
Will try to do more so if you've suggestion

Also idk if your mod is going to modif the map (use prop) so idk what kind of detail level I can permit (for exemple a wall is like 5-10 object / Shelter is around 30 / a trap can be between 5-15 etc), may I could add trash thing to reflect the world chaos (like add head on spike, barbed oon building, sand sacks, etc ) but it will eat more prop on the prop limit ( the max prop limit is around 1500 - 2100 prop depending the config, the old pc can some time have a lower limit ) so just say me what you prefer .

@HenryTux
I'll try to do something quickly
I'll build thing like Wall / Planter / WatchTower / Water Recuperator / workshop / kitchen / Elecgenerator / solar panel / wind mill / trap (i've some in mind need to make some test) / Shelter / stockade / Gates / Infirmery / Garage / and some other (if you've any to suggest you're welcome) with a ped in it , all that with menyoo attachment option ( hope it's ok for you and that you'll be able to someting with this else say me ;P)

@HenryTux
Also if you if you want give it a try, I can give you some object name and build some stockade/wall and build with a ped inside ( I don't think an object can be targeted by ped idk, but I can still, with menyooo , add ped attached to the building/wall/etc (hided sure ;P) set his life to define the build life, and may you could make your zomb attack him > so once ped hided and attached to a build die, launch a fx of collapse and make the build dissapear.
In this way we could set funny camp ( NOT GROUND, only few wall, tower, garden, workshop, garage, shelter, electricity generator, water recuperator, TRAP (like fire, elec, turret maybe ?) etc
and it could bring much more persistence to this kind oof gamemod with a different gameplay depending the area we choose. Also it could encourage the player to scavenge the map to build/rebuild