I can add some "hardcore" option, see the code in the data-final-fixes.lua
What types of entities must be allowed? Biters? Vehicles? Walls?
The mod makes it automatically, so the disallow list:
local mustbemasked =
{
"container",
"furnace",
"boiler",
"generator",
-- "transport-belt",
-- "mining-drill",
-- "inserter",
-- "pipe",
-- "offshore-pump",
-- "electric-pole",
"radar",
-- "lamp",
-- "pipe-to-ground",
"assembling-machine",
"lab",
"wall",
-- "splitter",
-- "underground-belt",
-- "loader",
"ammo-turret",
-- "player-port",
"solar-panel",
"train-stop",
"rail-signal",
"rail-chain-signal",
"gate",
"land-mine", -- for Klonan's Teleporter
-- "logistic-robot",
-- "construction-robot",
"logistic-container",
"rocket-silo",
"roboport",
"accumulator",
"beacon",
"storage-tank",
"pump",
"arithmetic-combinator",
"decider-combinator",
"constant-combinator",
"power-switch",
"programmable-speaker",
"electric-energy-interface",
"reactor",
"heat-pipe",
"electric-turret",
"fluid-turret",
"artillery-turret"
}