[SG, DS] Combat Engineers

G'day,

Has anyone here played with combat engineers as an integral part of
their
games or scenarios (JohnA??). If yes is this via them knocking down/
putting
up obstacles or in mine clearing or tread laying across swampy ground
etc? 

SG-wise can/do combat engineers go on foot and if so what kit do they
carry
(i.e. how does it vary compared to "normal" kit)?

And saving the dumb a$$ question for last do combat engineers = pioneers
(I
should probably have asked Derek this but I only thought of it on the
way to
work this morning).

Cheers

Beth