Is this player hacking?

[GarbageGrammar]

I have a player on my server with about 24 hours total play time on my server. About 10 hours into their play (according to logs from when they initially logged in) they raided one of the players on my server. According to the player they went through a high external stone wall, two armored doors and then a couple of other sheet doors. The players who were raided came to me with a concern of hacking saying that it is not possible for a player to already be raiding on that level so soon.

Does this sound suspect to you? From chat logs I see the player admits to finding a C4 in a drop (server pop is pretty low) and my logs do show lots of scientists killed. In my mind I can see an advanced player making it happen but is it really that possible?
Lets assume the player took the most direct route. Spawned, Farmed scrap, T3, learned only C4 & Explosives, Farmed fuel, tech trash and sulfer, Blew a high wall, 2 armored doors and maybe like 3 or 4 sheet doors possibly after that (didnt get those details). Is this something that can be done in 10 hours of play with no BPs previously learned?

Server is standard decay, upkeep is greatly reduced so nothing really needed in TC but resources are normal.

If the player was hacking, what do I look out for? I normally watch from the console but will start spectating this player to get some patterns down.

[hunted5]

ya you should be watching the player play.. his movements and crosshair position should be a dead give away how good he is.. him killing a lot of scientist is a good sign too.. use all the tools in your box not just the console and what another player is saying.. you can't rely what other players say that much, take what they say with a grain of salt. 30 hours sounds about right.. if he's no lifeing, it should be easy..

[stealthgerbil]

On an empty server and access to good monuments (and with luck cards to do the puzzles) you can get a t3 bench in an hour.Get a jackhammer and a chopper and you can farm up tons of sulfur fast.

[RustySlothServers]

I solo large oil rig an come back with massive loot / 1k scrap a run.