Hi Caribbean Boy
This has been a mammoth thread/s and I can understand a new joiner not reading back through it all. But...
This won't happen because any dismissal is illegal in the 12 weeks of industrial action so long as it is protected strike action. Protection is only possible where a proper secret ballot has been conducted in a 'lawfully organised' way. The employer cannot sue the union, and striking staff are protected from dismissal for a period of up to 12 weeks
This was done to death previously. You CAN be sacked for taking IA, but at your Industrial Tribunal you will automatically win an unfair dismissal case. Damages up to a set maximum, £66K approx but in reality likely to be significantly lower, will be awarded. Re-instatement hardly ever happens. The Tribunal can take months to happen and never looks good on a CV.
Please do take the time to be fully educated as to what can and cannot happen should you go on strike. Please do your own research as BASSA will not tell you the full details, they will tell you it is illegal to sack you for taking IA, but they will stop there, they will not tell you that you could still lose your job.