It was one I played long ago and can not remember the name.
It was one big building, Allies started outside the door and had to dyno door to gain access to building, capture spawn in big room with fireplace, you could climb up fireplace/chimney to get to second floor, third floor and roof, ammo and health packs were in hall between allies captured spawn and axis spawn where stairs are.
Had to get key on second floor to open door and dyno artifact, there were two doors to generator that you had to dyno to get access to generator, axis could climb ladder at spawn to access generator, there were secret passages, the book case opened and there were ammo and health packs there with a ladder to get to second floor, cp was just outside bookcase.
Ring any bells? 
Looking for a map
Was it an indoor map only (no fighting outside, in the terrain/forest/caves)?
Do you know what time of day it was in the map: nighttime (moon), or foggy sun or perhaps all sunny?
Winter or summer?
The buildings, where they bricks (stones) or wood? Was it an old castle, a military complex or something else?
What was the main objective? The Allied Forces had to dynamite a generator?
It was an indoor map, no objectives outside, you could run around the building and climb up to roof and go down chimney, the building was 3 stories with long narrow windows around it that you could shoot through, only 3 entrances main door, chimney and you could dyno a crack in the wall not far from main door, it had a long trench of water beside allies first spawn.
There were only 2 main objectives I think, Dyno the generator and the alien artefact, there were keys you had to take to open doors, there was a hallway on third floor that would lead to a secret room (that had nudie pics in it) if you took all the right turns or it would kill you, I remember pictures that screamed when you looked at them.
It was sunny, summer, it was a tan coloured building, brick I think, there were doors and rooms everywhere, long hallway on second floor, there was a basement I can’t remember why though, most of the action took place on second floor, it was one of the most popular maps on the server at that time seemed to always come down to huge battles at the generator and outside the axis spawn.
I have it stuck in my head and can’t get it out.
Hello
If you remember the name you had in the past, or some friends, maybe you can try with splatterladder.com : click sl.Search and de-activate the “only players active within the last 30 day”. Then click “Show all maps” on player page. Maybe you will find it ?
Hey, your description is epic ! I think we all like this map now xD
http://et.trackbase.net/map/153/
this one maybe ?
MISSION:
Allies: Infiltrate the house and get the forward spawn in the living room. Find your way in the house using
all kind of secret ways. Don’t hesitate to kill all Axis, who bars yours way.
Search for the keys, which will open you some doors for easier access the lab and the room with the power stone.
Destroy finally this lab and this power stone, so that the Axis have no benefit from them anymore.
If you have time, enjoy yourself in the swimming pool, in the labyrinth and in the gallery.
Maybe you wonna take a drink in the bar?
*Primary Objectives
- Destroy the Power Stone with dynamite.
- Dynamite the lab.
*Secondary Objectives
- Capture the forward spawn.
- Take the key 1 and open with it door 1.
- Take the key 2 and open with it door 2.
- Build your own Command Post in the library.
- Blow up every other door and the shield to the basement.
Thanks for the responses Ladies and Gents.
MacBeth that is exactly it (The House) thank you, I will be able to sleep tonight. 
PS: I added reputation please let me know if it went wrong, it happened before so I’m nervous doing it now. 
[QUOTE=diaboliksmart;511446]Hello
If you remember the name you had in the past, or some friends, maybe you can try with splatterladder.com : click sl.Search and de-activate the “only players active within the last 30 day”. Then click “Show all maps” on player page. Maybe you will find it ?[/QUOTE]
Since then all the data for these people are lost (maps and servers played), just fyi.
@Mateos I do that sometimes with splatterladder or I write the maps names or I use my old maps site and the new one to try to find the maps I wanna to play
@Gramp but glad to helped you and hope you slept fine tonight 
“climb up to roof and go down chimney”, this helped me to find the map name